As stated earlier in the thread a lot of it comes down to discipline.
This must start at home and be continued by the schools.
Trouble these days is if you are seen chastising your child in the supermarket or somewhere and some busy body reports you. You then get a visit from SS with a threat of legal action against you so a lot of parents are 'scared' to chastise. Same with teachers, they have been stripped of their powers of authority by governments and parents alike who don't want 'little Tommy' to be punished but 'rewarded' for being in the unfortunate position of not having a daddy/same daddy. FFS!!! Right is right and wrong is wrong no matter who/where your flaming daddy is!! When I went to school most kids came from a family of two parents but there were a few whose father had been killed in the likes of ADEN or died of some disease/accident etc. They were still disciplined in the same manner as the rest of us and grew up, in the vast majority, to be decent responsible adults. The whole problem of feral kids/uncaring parents stems from all the do-gooders in society who say we have been getting it wrong for the past couple of hundred years by instilling discipline rather than letting kids 'express their natural feelings'!!!
Take China or Japan for example. They have rigid discipline, OK, maybe too rigid, but it would be interesting to see if anyone knew what their school absenteeism rates are like. Better than this country I bet.