True, but look to the generalization presented in the original comment, where an overall trend was suggested. What makes one district filled with "good" parents and kids, whereas another was "bad"? To say nothing of the implication that the commenter was one of the good ones in the land of the bad.

My premise is that there's underlying causes unmentioned, but implied (like socioeconomic status). You can separate groups from membership, and to oversimplify, if you move something from one side of an equation to the other, with different results, what you moved was truly the constant, and what was left behind was the variable.

I can see that - and i agree.

specifically, I think the original comment was in poor taste, and there are other factors outside of good home life like you said.