1. Introduction
Environmental problems, especially waste, are faced by almost all countries in the world, including Indonesia. Waste mostly originates from human activities; this waste is often called anthropogenic waste. Anthropogenic waste is all products (made by humans and already used by humans) intentionally discharged into the environment through rivers or carried by waves or ocean currents (UN 2019). The average Indonesian produces around 0.52 kg of waste every day, and around 83% of the total waste is not managed [
1]. In Indonesia, waste management is considered to be less than optimal. Waste management is less than optimal due to a lack of public awareness or knowledge in managing waste. An increase in the amount of waste consumption that is not balanced with good waste management will cause a buildup of waste. Accumulation of waste can cause environmental pollution, which will later have an impact on broader aspects. Most people still do not have the awareness to dispose of waste in the proper place or minimize the amount of waste they produce.
Garbage is often found in various places, such as strewn on the road, in river bodies, coastal areas, or at sea. Garbage is a problem faced by people in urban areas, especially in coastal areas. Plastic waste is often found on the beach; it comes from rivers that flow to the beach and from recreational activities around the coast. The presence of rubbish in the river body indicates the behavior of people who carelessly throw garbage into the river [
2] and the lack of awareness from the public about the importance of protecting the environment. The attitude of these individuals is also driven by the lack of available waste disposal facilities in the region. The garbage in the sea not only comes from the sea but can also come from land. Garbage from land or garbage deliberately discharged into the river is then carried into the sea so that it builds up marine trash [
3].
Waste problems do not only occur in waters, but also in land areas. Most plastic waste is difficult to rot and must be recycled. Unmanaged waste will accumulate in landfills and cause environmental and social problems. Accumulation of waste in landfills, on the streets, and even in waterways causes envi-ronmental pollution. The accumulation of rubbish causes the environment to become dirty, decreasing the beauty of the environment around landfills and the beauty of the city [
4], The more serious impact of waste is on health. Waste becomes a source of diseases that can affect health and even cause death for living things. In addition, the accumulation of garbage in several places can cause floods due to clogging the flow of water [
5].
The role of the environment is very important for humans, and therefore, we need to protect the environment from litter and garbage accumulation. Proper waste management is needed to protect the earth. Improper waste management also triggers environmental problems. Lack of knowledge causes people to mismanage the waste they produce. People in the Anyer area of West Java burn plastic waste [
6] so that plastic waste does not pollute the beach. They minimize the amount of trash that is on the beach, but these activities have a bad impact on the environment. These activities produce new pollutants from burning plastic waste, which will cause other problems.
The cause of inappropriate waste disposal is individual garbage disposing behavior. The behavior of littering is influenced by several factors, including reluctance to look for a landfill, lack of knowledge about environmental impacts, and producing a large quantity of waste [
7]. The availability of landfills is very influential in environmental care behavior. Garbage bins that are easy to reach will reduce littering habits and increase proper waste disposal habits. The availability of rubbish bins that are easy to reach must be supported by the conditions of proper bins. A clean environment can be achieved if there is a basic change in mindset and human behavior towards reducing waste and littering. Although they collect, recycle, and process waste, if there is no reduction in the action of improperly disposing of garbage, the environment will remain dirty. In an effort to reduce waste consumption, an individual must have awareness of the environment and what is called the public’s environmental needs.
The study emphasized children’s behavior towards the environment in the form of dislike of littering. This behavior is identical to the habits that they exercise every day. This habit in children is influenced by education provided either by parents, the community, or from school. Parental education is one of the most important factors in shaping human behavior. Parent-guided norms, rules, and teachings usually help shape how children are supposed to behave in society. Hence, parents’ role in preparing the next generation of a country’s population is important.
2. Literature Review
This study emphasized children’s behavior towards the environment in the form of dislike of littering. Behavior is identical to the habits they exercise every day, and habits are influenced by the attitude of the individual. If they like an activity, they will be happy to perform it, and this activity will continue to be carried out and then become a habit. This affects behaviors that support the environment. Pro-environment behavior is influenced by several factors. Some of the pro-environment behaviors that children can perform are in the form of garbage disposal, waste classification, and reducing, reusing, and recycling. Waste classification categorizes waste as plastic, organic, bottles, etc.; this aims to facilitate the process of recycling waste. Social factors that influence the classification of waste include the following [
5]:
Demographics: age, income, education level, gender, political beliefs, presence of children;
Psychology: perception of comfort and ease of business, knowledge, social norms, attitudes and environmental focus, recycling habits, beliefs, and groups;
Economy.
Recycling activities are influenced by social norms. Social norms are rules that govern what is acceptable or not acceptable in the community. This social norm is influenced by family, neighbors, and friends [
8]. Each individual directly learns about the behavior toward the environment from daily activities carried out by the community. If the surrounding community acts pro-environmentally, this will encourage individuals in the area to care about the environment, and vice versa. This affects every individual, especially children. Children imitate the activities carried out with regard to the environment because they do not have enough knowledge to distinguish between activities that protect the environment or damage the environment. The subjective norms of a child are influenced by the norms taught by their parents [
9]. A child spends more time with his family, and this will affect the subjective norms of the child. However, social norms alone are not enough to change individual behaviors—attitude and perceived behavior control is needed [
10]. Attitude and perceived behavior have a direct impact on behavior because they correlate with individual intrinsic motivations [
10,
11].
Economic factors can also encourage one to carry out pro-environment activities, such as waste classification and recycling. These activities provide economic benefits, so individuals will be more willing to engage in them. Most studies suggest that pro-environment behavior is influenced by environmental education [
12,
13,
14,
15,
16], but there are some researchers who mention that there is no relationship between education and pro-environment behavior [
17,
18]. Environmental education is a system that combines programs, tools, and approaches to support community attitudes, promote awareness of the environment, and improve individual skills to take ecological actions [
19]. This environmental education consists of several levels, namely individuals, communities, and ecosystem extinction.
Stern et al. [
16] state that there is a positive relationship between knowledge, awareness, expertise, attitudes, and behavior. Duration of formal education will affect the level of knowledge. People can learn pro-environment knowledge from school, but this does not significantly influence their ecological behavior. There are other factors that influence ecological behavior, such as experience and environmental awareness [
20]. To increase ecological behavior, we need not only formal education, but also informal education. Informal education is learned from family and society. Some countries have used the media in providing education to the public to improve environmental knowledge. Media used include pamphlets, television, and internet [
14]. One of the things taught in environmental education is to classify waste. There are several aspects that affect a person’s willingness to classify waste:
Some other factors that influence classification include gender, economic level, education, and geographical location [
15]. According to Gamba and Oskamp’s [
22] research, gender does not affect recycling activities. According to Mintz [
4], women recycle more than men in terms of easy or mild types of recycling. Often, requirements and difficult recycling efforts drive down the rate of recycling. The behavior of environmental care includes recycling, energy saving, and water saving. According to Liu and Sibley [
23], several factors that influence the desire to classify waste include: demographic characteristics, psychological factors, and economic factors. Demographic characteristics include age, level of education, income, etc. Psychological factors include individual perceptions, information, social norms, environmental behavior and attention, and recycling habits.
Waste management requires facilities to support individual behavior. These facilities must be easy to access (short distance), widely available, and have various designs. In the country of Indonesia, types of bins are divided into three, namely, bins for organic waste, bins for inorganic waste, and B3 bins (hazardous toxic substances). In the past two decades, Japan has separated ten categories of waste based on its type [
24]. Recycling can be performed independently or in groups. Recycling that is carried out independently is influenced by the available storage space in each house. If the house does not have a lot of space, then waste will automatically be disposed of directly into one trash bin. If there is enough space, they will be able to sort waste and reprocess or even recycle the waste. According to Roczen et al. [
25], activities that can protect the environment include minimization of waste, recycling, and energy saving. Waste minimization can be achieved by using environmentally friendly items, such as bags made of cloth rather than plastic. If things can be used again, they should not be thrown in the trash. Objects that can no longer be used and will become trash should be recycled into new goods. The last ecological activity is to save energy. Electricity savings range from using energy-efficient electricity tools, to turning off unused electrical equipment. Other energy saving activities include using public transportation to reduce fuel use and pollution production.
Environmental education can be given to the community, especially households. Education in the community is expected to increase knowledge of environmental management. Activities that can be carried out by the community include cleaning the environment, reusing goods so that they do not become garbage, and sorting garbage based on organic or inorganic qualities. Inorganic waste sorting can be classified as that which is recyclable or cannot be recycled. Communities cannot carry out these management activities themselves; they need support and assistance from relevant agencies. Related agencies play a role in providing infrastructure, education, and law enforcement. The infrastructure that can be provided by the government is the provision of trash bins, and firmness is needed in processing littering violations.
Hoang and Kato [
26] state that efforts to encourage children to care about the environment can include the reuse of toys. Children’s ownership of toys is always increasing. Their toys have an average age of 3–5 years. After this period, children become bored playing with the toy, and the toy will become rubbish. To help the environment, children can utilize the concept of reuse. Children who do not like their toys can donate them to other people. This effort is considered more ecological than throwing away unused toys, which will only increase the amount of waste. The results of the aforementioned study found that 67.1% of the sample of children and households participated in minimizing the amount of waste through this donation activity.
Factors affecting pro-environment activities [
22]:
Demographic variables: education, age, income, child attendance;
Knowledge of environmental conservation;
Attitudinal variables: beliefs about environmental problems, individual motives, and participation in community programs, feel they want to help solve environmental problems. Belief in the effectiveness of recycling activities, favorable government regulation;
Behavioral variables: past recycling behavior, recycling by friends and neighbors.
Pro-environment behavior is supported by behavioral variables, including prior individual behavior. If the individual is already accustomed to performing pro-environment activities, they will more positively perceive pro-environment activities that are now being carried out or set to be carried out. However, the behavior is also influenced by the surrounding environment, including both friends and neighbors. If individuals who are accustomed to behaving pro-environmentally are influenced by neighbors who are not pro-environment, the pro-environment activities that were previously carried out can slowly disappear. According to the results of research from Roczen [
25], the relationship between environmental knowledge and environmental behavior of children is weak. This is because children’s knowledge of the environment is still small, thus, they do not know about current environmental problems. This requires increasing the knowledge of children about the environment. According to Novo-Corti [
27], pro-environment behavior is influenced by several factors including awareness, attitude, motivation, social norms, environmental education, and intention. Integration between social economy and environmental education is very important [
28]. Motivation can be distinguished as intrinsic motivation and extrinsic motivation. Intrinsic motivation is related to concerns and behaviors exercised for reasons of individual inherent interest, enjoyment, and satisfaction [
11]. Meanwhile, extrinsic motivation is related to concerns and behaviors exercised for reasons other than inherent satisfaction, such as rewards, punishments, self-esteem, activity value, and recognition [
11]. Extrinsic motivation can be influence by internal and external factors such as economic benefits (sanctions and rewards and benefits from waste), waste sorting facilities (distance to waste collection locations, recycling centers), awareness (waste sorting guidelines), sorting transportation (waste collection/transportation methods and frequency of waste transportation), and participatory atmosphere (management and the surrounding community) [
11,
29]. In addition, Kalajas-Tilga et al. [
30] showed that intrinsic motivation is important to the psychological satisfaction that drives individuals towards action in the long term based on their free will.
Figure 1 shows that general ecological behavior is influenced by effectiveness knowledge, attitude towards nature, and action-related knowledge. According to Liu and Sibley [
23], children can influence environmental conditions in negative terms, for example, littering behavior. This is caused by the social status of the pattern of child care both at home and at school. Parenting patterns at home take the form of interactions between family and children, while parenting patterns in schools include interactions between teachers and students, the curriculum, and teacher education. Hartley et al. [
31] stated that children aged 8–13 years know the problem of the impact of waste and actions to solve environmental problems, but this is only basic knowledge. After education, there is an increase in understanding and improvement in environmental care behavior. Education is important for children because children play a role in the present and the future.
Waste management has been conducted for a long time with a simple technique [
32]. Organic waste from the kitchen is disposed of in one place that will become topsoil that can be used for agriculture. The environment is clean because garbage is not scattered and soil is fertile. The solution to overcoming environmental problems, including the problem of waste, is through social agendas in the community. This activity is carried out to increase public awareness about the environment. This environmental awareness can be encouraged by increasing environmental knowledge through counseling or other social agendas [
33]. Awareness is not only instilled in adults. Environmental awareness also needs to be taught to children. To instill awareness in children, we must be able to impact their daily lives by providing entertaining and interesting environmental education. Therefore, the right media must be prepared.
Mintz et al. [
4] state that there are two waste management activities, namely reducing and recycling. Reducing is carried out before garbage is formed while recycling is realized after garbage is formed. Both of these activities can improve the economy, saving the remaining money in the recycling process. By reducing and recycling, the benefits obtained are not only for the natural environment but also for the individual economy. However, there are principles that are not quite right about these two concepts, as some people choose to just recycle and do not reduce. The biggest waste problem is the large amount of waste production and improper disposal. If waste production remains high and people do not commit to reducing, this will have an impact on the severity of recycling activities. People should prevent the formation of waste by reducing waste and then recycling their waste.
This management includes a preventive effort by using social norms in the community. Some people, especially rural people, prefer to use shopping bags that can be used repeatedly. Some traditional markets still use leaves to wrap goods, which is considered more environmentally friendly. The aim is to minimize the production of plastic waste. The impact of education on each individual is different, depending on the individual. Environmental education can be accomplished anywhere, either in the community or the school environment. This environmental education is important; the aim is to increase knowledge of environmental problems that occur and how to find solutions to solve the problems so that people can live better with better environmental conditions.
According to Kollmuss and Agyeman [
34], environmental behavior is formed from the experience of each individual. Individuals who practice pro-environment activities directly have a stronger influence than those not practicing. In addition, environmental behavior is influenced by social norms, culture, and family habits. This affects and shapes individual attitudes. Another factor that is not taken into account is that a person’s attitude can change at any time. The method of improving education has no effect on pro-environment behavior [
34]. Pro-environment behavior is a multidimensional science [
16]. To learn about it, we cannot use just one type of knowledge, rather, we must combine several sciences. The combined knowledge includes psychology, norms, science, environment, and education. There is a relationship between values and environmental behavior. Someone will carry out pro-environment activities if they can benefit from nature. The greater the value they obtain from nature, the more pro-environment behaviors they will perform [
35]. Garbage is an environmental problem that must be managed properly. Waste management is related to waste disposal behavior. This management is carried out from collecting, distributing, and disposing waste. We must consider garbage bins, the number of garbage vehicles, and the number of garbage workers [
36].
Meanwhile, according to Leeabai [
18], the behavior of disposing garbage is not influenced by the distance of the trash bin to the individual. If individuals do care about the environment, they will dispose of garbage when they are met with trash bins. The distance of the bin is only related to the accumulation of the amount of garbage, not the behavior of disposing of the garbage. When there are trash cans that are separated by type, this will affect extrinsic motivation in separating waste.
Figure 2 shows factors that influence individuals to change littering behavior: education, enforcement, and infrastructure. These three elements must complement each other. There are two theories used to explain the behavior of the environment, namely the theory of planned behavior and the theory of belief theories regarding the value of behaviors norms driven by internal and external factors [
37]. Internal factors come from each individual, while external factors come from the natural environment and social environment. Behavior theory involves attitudinal theory, where the individual’s behavior is positively valued. Individual behavior is determined by individual norms. These personal norms depend on one’s awareness of environmental problems, and their sense of responsibility to solve those problems.
With the problems that occur on earth, an understanding of children’s attitudes and behavior towards the environment is needed. The clean and healthy lifestyle of children is difficult to change because of lack of knowledge and limited resources. According to Kollmuss and Agyeman, there is no direct link between environmental knowledge and pro-environment behavior. Providing more environmental education does not necessarily increase pro-environment behavior. Pro-environment behavior occurs because of habits that have been carried out, and changing a habit requires a short time. Based on the above model, it is stated that pro-environment behavior is influenced by two factors, namely internal factors (from individuals) and external factors (outside of individuals). The black box shows obstacles that prevent pro-environment behavior. The arrows illustrate the interrelationship between the influencing factors. The greater the arrow, the greater the influence of the factor on pro-environment behavior. The biggest factor affecting pro-environment behavior is old behavior patterns. Changing pro-environment behavior requires practice, not just theory. If you have the desire to change behavior but do not practice it, then the pro-environment behavior will not change.
From all literature described, two questions were raised: (1) which factors have a great effect on the dislike in littering behavior, and (2) do low-income and high-income households have different factors that influence their perceptions of littering? This research was conducted using survey methods among various household types; the details and analysis process are described in the methodology section.