If people weren't so messed up at raising their kids, then the kids might actually do well with their lives.
I think the only reason why kids do stupid stuff like get arrested for something they did is probably cause they don't get enough attention at home from family and just want their families to know that they are actually there. That is just what I think.
And if the kid doesn't want to straighten up after being bonded out of juvie, then just wait for them to mess up again and leave them in there the next time they get arrested. It's the only way they'll learn.