It must be very hard for old people as the rules of life changed so drastically in one generationI too feel older people are especially rude - many don't seem to have a filter and just say whatever they're thinking!
Once it was very ok to chat to other people's children, to talk to a pregnant lady about her pregnancy ( and yes even to touch her bump) , to go sit on a bench and chat to whomever is sitting there. to be able to sit and watch children play without parents looking at them as if they are child molesters.
Today's society is a unfriendly unforgiving one, we are naturally social creatures but are very fast becoming unsociable and it seems that is now the more prevalent. whereas before the unsociable were looked at as unusual.