It's not just about education, it's about who you socialise with.
I agree entirely.
That's another reason why some sort of selection is necessary. So that children can be shielded, in their formative years, from criminal and violent aspects so prevalent in some sectors of society.
Education is indeed the answer, but in many cases, in many districts, it's too late for the parents, who set the local values.
To some extent, the present system, which is selection by post-code, does work, but it also polarises.
JC