sounds like negligent parents waiting for a CPS visit to happen to enforce those social mores :) Fortunately, you seems to live among similarly "negligent neighbors".

Once, we picked up an obviously lost dog on a mountain road and dropped it at the first fire station after the phone on its collar resulted in a voicemail. It was during our 1st year in the US and the thing "what if the dog was stolen and we stopped by police while the dog is in our car" didn't even cross our mind. Now after 13 years here, i'm wondering what i'd do if it was say a child (and there is no collar with the phone to leave voicemail) ...