My mother taught in a ghetto black high school for a few years around 1974. The city had “flipped” over the past ten years. The students treated her with respect, she never had any complaints about that.
She said some of them were quite smart but they were mostly raised ghetto. She was talking with some pregnant girls and she used the phrase “going to bed with” a boy and they didn’t know what she meant. Against a wall was what they were used to.
It was a fairly safe and respectful school when the competent white principal was there. The powers that be chased him out and replaced him with a competent black principal and then chased him out and replaced him with an incompetent one. And then it became dangerous and hopeless, no chance of an eduction.