Why can't you see trash cans on the streets of Thailand?

Because Thailand has a tropical monsoon climate. There are only three seasons in a year, namely, hot season, rainy season and cool season. The average temperature is about 28℃, and the average annual precipitation is about 1000 mm. The humidity is between 82.8% and 66%. For Thailand, which is hot and humid all the year round, the trash can is easy to produce odor, and the garbage is perishable, which is easy to attract flies and insects and has a great impact on the urban environment. Apart from Thailand, there are no trash cans in the streets like those in South Korea, Britain, Japan and the United States, and it is difficult to find trash cans in Singapore, because almost no one in Singapore eats and drinks while walking. Social common sense is that garbage will not be produced in other places except the dining area, so only restaurants, leisure stations, airports and other places will have garbage bins. However, there are trash cans on the roadside, traffic lights, bus stops and airports in Singapore, which is quite convenient. However, there will be no garbage bins in subway stations, carriages and buses, and littering is strictly prohibited, and offenders will be severely punished.