Just because a person come from a bad home doesn't always mean they will turn out the same.
A child has a brain and can think for it's self,so how many kids HAVE come from homes like that and gone on to better things using the Childhood experiences as a guide of WHAT NOT TO DO.
My father did things to me as a child,that I swore I'd never do to my kids when I grew up,and believe me I didn't.
We here had people a few years ago now,going to court for robbery,rape and other charges and their legal people would claim Diminished Responsibility,because they were Drunk,Drugged to the eyeballs or some other stupid excuse.
We had one such case where a woman got drunk at a pub (bar to you in the US) and drove home,while on the way she was involved in a collision between her car and another and ended up having an arm amputated because of it.
She was charged with high range drink driving,but tried to charge the barman for her having the collision,her reckoning??,if he hadn't served her she wouldn't have been drunk
,didn't matter that SHE was the one who picked up the glass and drank the contents,it was his fault.
Consequently the case got thrown out of court after the judge gave her a dressing down about her own stupidity be the blame.
Far to many times now we hear of people blaming someone/something for them making a decision that Kills someone or a robbery where someone is shot,but it's not their fault they did it. Wake up,smell the Coffee and take responsibility for your actions,I think that should be something all courts around the world should be saying to people brought up on charges before them.
But maybe I'm just a little to Demented to expect that
.