I'm not religious, but a nuclear family is one of those things that religion promotes far above that of a secular life where anything goes.

But then when you look at it racially, where in the US, some 80% of black folk are religious, but at least 50% of parents are unmarried (way higher than any other ethnicity), seems to counter that. Perhaps 'black don't crack' has more truth to it than I thought since I don't see any decrepit African Americans walking around with walking sticks by their mid-30's