i don't have much of a problem with 4 or 5
unless they are being annoying(ex listening to loud music or watching video on the phone)
or breaking norms(like talking loudly about extremely private things)
6 I dunno I always enjoyed talking to random strangerヽ(´ー｀)ノ
12 I don't get it
19 seems to me that you live in a very low trust society
an ideal society for me should be high trust .