Oh come on. Welfare parents aren't often on drugs and their fathers aren't often in jail - that is such and stereotype with racist overtones. There are plenty of homes chock full of drugs and alcohol and homes with parents in trouble with the law that aren't dependent on public assistance.
What we can assume is that it's the intervention of the public-funded programs and the schools overall that protect children from at-risk homes despite their socio-economic class.
By the way, welcome to Free Republic.