At least part of the fault lies with our social workers who say, spanking your kids is wrong no matter what the kid has done.
I have a son who is now 20. When he was 15 his mother sent him to live with me because he was *uncontrollable*. ie stealing, running away from home, hanging out with known gangs etc etc.
When he first showed up money started to disappear, things with value like jewelry also started to disappear. We knew it was him taking these things but had no proof. I installed a deadbolt lock on our bedroom door, and we started keeping money and other valuables in our (locked) room. So what does my son do? He cuts the screen on our bedroom window and comes in through the window. One night my wife forgets to put her purse in the bedroom and he wipes her out. (takes over $40)
At this point I sit him down and tell him we know it's him taking this stuff and that at 15 he knows it's wrong and why. I also explain future consequences for any further stealing. Less than 2 weeks later he cleans out his 3 year old half-sisters purse. Now the consequences I laid out for him come into play. (the consequences was a spanking. I used his belt since I do not own one). He called 911, I got a ticket for child abuse. I spent over $4000 on attorney fees fighting this and still ended up with a deferred judgement, 1 year probation and mandatory parenting classes.
Absolutely no one would do anything about his stealing, all they cared about was the fact that I had spanked him with a belt.
Kids today know that if their parents use corparal (sp) punishment all they have to do is call the police and thier parents will be in big trouble, so they do as they wish without regard for any consequences.