Children grow up to be drug addicts because of dysfunctional homes

Another way of looking at the “self-inflicted” illnesses that are drink-, cigarette- or drug-induced is to go back to when that person was a child.
They were born in a state of perfection, with the potential to be anything. It seems unlikely their parents — even the ones not fit to raise a child — wished for them to grow up and become a drug addict or to repeat the same cycle of mistakes.