If neither parent is religiously affiliated, 91 percent of
the children likewise describe themselves as having no religion. At the opposite
extreme, where both parents belong to the same denomination, the proportion
of children maintaining that allegiance and the proportion listing themselves as
‘none’ are equal at 46 percent each.
That's just sort of cool. I've always suspected a bit that it would be rather hard odd to have children end up religious raised non-religiously. If you don't force that BS into their heads when they are wee babes, it's rather hard to get it there. As an adult it doesn't seem like it should fit.