My idea of intervention for young people, is not by lumping them in with other crims or with people on a similar path in halfway houses. They need to be offered another path, or shocked on to another one, taken out of their situation and moved somewhere else if they will go, new start, different company, school and/or a job. Given a purpose.
My brother said some of them do work on themselves and actually want to change but once they are back in their environment with their usual influences, no prospects again, it doesn’t take long to reoffend.
Even in the prison setting, the younger ones learn even more criminal behaviour from the more seasoned ones.
You’re a product of your environment I guess?