I'm not 'up' with the Blackburn case, so may be barking up the wrong tree, but I do know that when children (over age 10) and young people are prosecuted and convicted, their parents can be compelled by a 'parenting order' to undergo a parenting course, as part of the sentence. Also when young people,16 and under, are given 'referral orders' a parent must attend all the meetings of the youth panel with them. When financial penalties, costs or compensation are awarded against convicted young people, who have no income of their own, the parents are liable to pay, whether or not they are on benefits.
The problem with ASBOs is that they are civil, not criminal justice measures; it is only the breaching of an ASBO that is a criminal matter. ASBOs are often given for behaviour that may well be criminal, but which may be difficult to prove 'beyond reasonable doubt', in a trial,which would require people to come forward as witnesses and for their evidence to be tested in court and so on.
While just as distressed by the minority of young people, who by their behaviour cause so much fear and upset, as everyone else, I do think it is very important for us to remember that these 'monsters' do not suddenly spring up 'fully-formed' at the age of 13, 14, 15 or whatever, but
are the products of a complex mix of social, economic, and emotional factors, going back in many cases to their earliest years. Please don't misunderstand me - of course I believe in personal and parental responsibility, but recognise that many children and young people start from a greatly disadvantaged base, when it comes to developing the self-respect, empathy and respect for others, required to be a mature responsible member of society, especially when, in many cases, their parents haven't developed these qualities.