We lived in a trailer park for 21 years and none of our kids or neighbors let their kids run around like that......................
This is generational culture rot...as you say, nothing to do with wealth. Good manners and behavioral rules get past on from generation to generation - or they don’t. This seems to be the far edge of “they don’t”. Fatherless kids where even the mother isn’t paying any attention to them. Without correction they’ll just imitate anything they see. Now we see what they’re being exposed to - cops are bad, nobody shows anyone respect, anything goes, etc..
They’ve been inserted into a world where they’ll have no chance of a real life. In another time this would be immediate grounds for declaring “child abuse”, due to lack of care, and they’d be put in another home. Now it’d probably just be called ‘racist’.