you would think that by reading the bible and possing some sort of basic logic one would figure it out on thier own. I think the evangelical protestants are willfully ignorant, as it is the only explanation i can figure out. I know old people are, I have witnessed it, and why I used them as an example earlier.
Basically there are two types: the ones born and raised in the faith and converts. Before 1970, most would have been born and raised and fewer would have been converts, but then circa 1970 the "Jesus Freak" movement (burned-out hippies giving up drugs to "get hooked on Jesus") flooded fundamentalist churches with large numbers of new converts and ushered in a decade of very aggressive proselytizing -- while their proselytizing efforts do continue, it's nowhere near as virulent as it was then. I would blame that period of proselytizing for a lot of the antipathy people feel for fundamentalists.
In the case of converts, they would have to learn to resist reality and become willfully ignorant. They already know what's out there so they have to train themselves to ignore it or to rationalize it away.
In the case of those born and raised, with experience from brushes with reality and with support from their community, they learn to filter out reality and to become willfully ignorant. However, the children have not yet had those safeguards installed, so they are at risk since they actually believe the nonsense that they're taught (eg, "creation science", saddles and bridles for dinosaurs) so exposure to reality will hit them the hardest. Oh, their parents are trying to get them trained, but the job is not yet complete so they need to shield them from reality. Like with noahsinternet and with calls to keep certain books from being published (eg, marc9000's book list).