The sense of comfort and security that people experience when traveling in Japan, for example, the politeness of the Japanese people, a society where lost belongings are properly returned to their owners, the low level of theft and overall sense of safety, quiet streets and neighborhoods, cities free of litter, towns without graffiti, clean public restrooms, trains that run on schedule, historic buildings that have been carefully preserved, beautiful natural surroundings, and unmanned roadside stands selling fresh vegetables, is by no means something that has happened by chance.
These are all signs of an orderly society that the Japanese people have built over many years. From an early age, people are taught through education and upbringing the importance of following rules and avoiding inconveniencing others. Over generations, each individual has valued honesty and integrity, contributing to the development of the orderly society we see today.
I believe that one of the major influences underlying these ways of thinking among the Japanese is Shinto, whose roots can be traced in part to the animistic beliefs in nature that have existed in Japan since the Jōmon period. Shinto has deeply permeated Japanese culture and everyday ways of life over the course of thousands of years.
If you find it difficult to respect these aspects of Japanese culture, you may find traveling in Japan tiring because of the many unspoken rules, or simply feel that the lack of public trash bins is inconvenient. In that case, you may find traveling to other countries more enjoyable.