"There's a polite fiction that things outside one's own bubble don't exist" I've seen this (via documentaries) where Japanese rail service is involved, and how

"There's a polite fiction that things outside one's own bubble don't exist" I've seen this (via documentaries) where Japanese rail service is involved, and how even speaking on one's cell phone is considered rude. Even more so, when something negative happens to someone near you, how pretending to not see it is the norm. Another thing I heard is that if a guy gives a girl a cat-call, if she responds negatively, she's leading him on in a sense (causing further interaction). There are other examples, such as stopping a thief running away from the scene of a crime, etc.