Is our childhood really responsible for everything?

I think it is BS to blame all your problems on your parents. I had a great childhood. I do have some issues (like everybody), but I realize that these are a direct result of my own doing. I used to date a guy who was a thief and liar. He blamed it all on his bad childhood. Finally I told him that he was 30 years old and needed to grow up and take responsibility for his own actions. He was an adult and needed to act like one. That crap of laying all your problems at your parents' feet is ridiculous.