the fact is that drugs flow freely into ghettos, gangster culture is big, education is poor, and there are few good role models. this means children aren't told how to act like respectable human beings, it's very difficult to get a good education (plus college is too ridiculous an expense to even consider) so they have very low prospects from birth. they learn that petty theft, armed robbery, and drug dealing are the best ways to make money. it is a never ending cycle.