This sort of crime and anti-social behaviour has seemingly been around for all of my life and it just seems to be an ongoing feedback loop.
Nonchalant people with no real help or people to care for them raise nonchalant children with no hopes, aspirations or cares.
This part is depressingly true. Where I work I had a member of staff who just retired last year. He was often a really nice happy man who no one would have a bad word to say about, lovely guy. One day he came into the main office and just had a depressed/given up look in his eyes. When someone asked him what was up he said he just realised that one of the young people he was teaching, and not getting through to, was a child of a student he used to teach 20 years ago. He can literally see the cycle about to repeat in front of his very eyes and he was helpless to stop it as ultimately the parents just don't care enough to set a good example.
I grew up with basically as much freedom as you could get and didn't manage to harm or kill anyone. There's been a switch at some point where they are no longer afraid of the police or seemingly anyone else. A lot of this stuff even happens in the middle of the day. I grew up with some rough people from all walks of life and they all had a limit to their rebellious behaviour and those that crossed the line paid for it. Now there's seemingly nothing to lose and no line to cross.
It's not just 15/16+ year olds too, it's 10/11 year olds seemingly left to run feral with adult behavior and language. These kids should still be wacking nettles with a stick while giggling at the one mate whose learnt a new swear word off his nan. Innocence seems to be leaving the youth much earlier.
You're not wrong. In the summer last year I got told to "Eff off d-head" by a child barely up to my waist using one of those scuttlebug things. My mind was blown.
Last week I got told to fornicate with my mother and got called 'afro head' but a young group of teens 12-14. Was a bit disappointed with them really, they've decided that wanted to racially abuse me and the best they came up with was afro head... they didn't even do it properly. Wasted effort on their end.
Regarding smacking your kids. I grew up in a Caribbean household, smacking kids was the norm and I think I grew up OK. If anything I'm grateful I got beat as I'm sure I would've been a idiot without those lessons and if nothing else they're funny anecdotes that my family and I look back on now.