The post is wrong though. Tokyo isn't a nice city because Japanese people are mystically polite to each other, it's nice because it has good policies which you can copy yourself.
https://www.usatoday.com/story/sports/sportskind/2022/11/28/...
In this case, anyway. It's actually pretty difficult to get rid of some things, so people can build up a lot of junk at home - Marie Kondo's books in Japan actually have extra sections on how to get rid of it.