Ah, now that's not what I said. Breaking it down
you are the one that has called for 'pre-criminal intervention' and spending money on 'preventative issues', but this is exactly the type of antisocial animal that you have now said is 'unlikely to be affected one way or another'.
The term 'pre-criminal intervention' means exactly that: intervening well before any criminality emerges. That means before the child reaches the age of seven. Of course, working with them after that age or even after they've committed the offence is far less effective, if it works at all.
Look at it logically. Teenagers who get drunk and lash out in an unprovoked manner don't usually appear suddenly. I would be willing to bet a large amount that there'll be a very thick file on that individual, and it will date back to his reception class days. Junior schools know who these people are, well before they become old enough and big enough to cause real harm.
The reasons are varied, but most stem from appalling home backgrounds. In Social work it's known as the vicious cycle - bad parents produce damaged children who go on to become bad parents. Sociologists have argued about the root causes of this for years; many say it's to do with society breakdown, others that it's due to family breakdown. Whatever the causes we do know some things for sure: Jewish communities and Jewish families have a much, much lower rate of juvenile offending. Black and Caribbean families have a much higher rate. Deprived areas have a much higher rate. Strong Church communities have a much lower rate.
The common factors are not, as was once thought, poverty and deprivation, however; they seem to be family and community. Where children are brought up in large extended families or, as in Jewish families, where the religion and way of life are inextricably combined, children tend not to go on to become offenders. Where children are brought up without an extended family and have no community or faith-based groupings, they are statistically far more likely to become offenders.
Simply put, it revolves around mores, values and expectations. If children are brought up to know right from wrong then it usually has an effect. However, if the parents don't know right from wrong themselves and there's no extended family to reinforce values or no community, then the child is far more likely to become a criminal.