People brought up in homes that taught respect and responsibility are more apt to have religious convictions than people who weren't.

That is people with hope. Hebrews 11:1 "Now faith is the assurance of things hoped for, the conviction of things not seen."

I have NEVER - EVER - met ANYone who "needs proof" for their beliefs. ALL humans that I have EVER met believe at least dozens of things without proof...and almost certainly HUNDREDS of things. *** The difference is CHOICE or, one might opine, PERSONALITY. People who do not believe in religion (or "God") are people who for one or more reasons DO NOT WANT TO BELIEVE. People who DO believe in religion (or "God") are people who for one or more reasons WANT TO BELIEVE. The argument "there isn't sufficient evidence" is ALWAYS - in my experience - something that arises from a double standard. ("I believe in these dozens of things with equally poor evidence, but not in that thing.") And...THE ALTERNATE POSITION IS THE SAME. ("I don't believe in those dozens of things with equally poor evidence, but I DO believe in that thing.") *** BTW - I'm a firm believer in Christianity. I have my reasons. That is: I can reasonably justify my belief to myself...but I don't expect anyone else to accept my reasoning because it is not LOGICALLY CONCLUSIVE, and only thinkers much greater than myself (see, for example, Descartes) can devise logically conclusive arguments, one way or the other, for such a complex subject.

The same people who believe in God, are the same as people who believe the universe came from nothing. The only difference is that people who believe in God, also believe in objective morality and purpose.