The Family is The cornerstone of the nation state.

[Gilrandir]

And what if the good neighbourhood hides a paedophils ring or a serial child killer?

Could be. But the dangers a bad neighborhood may have in store seem to have a higher probability.

Difficult to debate when it hasnt been defined what exactly a strong family is. We're talking generalities and I say the family unit is more beneficial than the neighbourhood in such terms.

Finally! We have come to realize that we started discussing a strong family, but we haven't agreed on what strong family is (nor on what a family is, it seems).