Comment by mrtksn

The police is not always present and you don't have to attack anybody. For most cases it is good enough to be able to show credible defence. If you you are able to smack someone, they will get smacked if they insist and remember it even if afterwards you go through legal trouble(they will also get into legal trouble). Police and the courts cant un-smack them. As a result, people feeling causing trouble tread more carefully and don't cross a line unless they are fully motivated to go through all this.

Streets are significantly more polite than the online places and I think its because of the dynamic of it and not the people - they are the same people.