Agreed, and I think part of what created this culture is widespread use of public transport. People in NYC are way better behaved on the subway than those in LA, at least in my experience. People in LA aren’t used to having to put up with strangers odd behavior, so aren’t used to modulating their own behavior.

My mother’s requests for us to calm down escalated over the years: “Cool your jets” “Don’t get your underwear in a wad” “Don’t get caught in your zipper”