Manners and civility are what make it possible to live in today's crowded societies. When they break down the symptoms are only too evident - road rage, supermarket trolly rage not to mention a whole raft of more damaging anti-social activities. It is no longer possible to reprimand young people for such behaviour - you are likely to find an irate parent on your doorstep or worse, police with an arrest warrant! Yesterday while out driving I encountered three young girls cavorting on the roadway close to passing vehicles, quite heedless of the danger they were in. No sane person would dare to stop and speak to them for fear of retaliation or worse from their parents or police - and the children know it. I have asked a young person if they had bought a ticket for the rucksack occupying the only vacant seat beside them on a bus without reaction before moving it myself. Shortly after I was the only person on that crowded bus to give up their seat to an elderly lady.
I have to say that manners and behaviour have to be instilled into a child at an early age but that child, when an adult, has a huge headstart in life over its less favoured peers who have never learned such niceties as civilised eating habits and polite social behaviour. Once learned they can fit into any social circle, without them they will always be pariahs and exhibit their resentment of this by their behaviour.