A senior colleague of mine was surprised I had once been a JW, stating it just did fit with how she viewed me. She virtually said, with open- mouthed incredulity, "How could you have ever believed that kind of religious bullshit?!" I simply said, "I was born into it and it was completely normal to me."
"Oh" was her one word reply
I dont think she fully comprehended how much children are at the mercy of what their parents say and do...at least until those children get older and - if they ever do - start questioning what they've been taught from the beginning of their lives.
I think the same goes for me. When you're young you trust your parents.
Don't cross the road without looking
Don't swing off the garage roof you'll hurt yourself
You must go to the meetings or you'll die at armageddon.
Plus you tend to asssociate with others who believe the same things which further reinforces it into a normality.