When bad decision making has been handed down from generation to generation since slavery was over that tends to become the norm. Black people taught their children how to survive more so than teaching them about getting a head. Its a direct reaction to the spectre of racism. You teach your children what you know. If they happen to break the cycle the smallest set back can send them into what I call remission. The habits you learn can cripple you for life if you dont know those habits exist. Why do you think people have a hard time losing weight?