I don't remember any children I've met that started to go to church on their own, but I've met some adults that grew up in a non-believing family and then became Christians, but they have been the minority.

I think, as others have said, your parents and everyone else help teach you, in one way or another. I wasn't brought up in a religious house, but we went to church every Sunday through high school, and I personally believe in God. I really became a Christian in high school when I decided for myself it was right for me, though. I went through a long period after that where I fell away from God, but then I came back to Christianity again. After I came back, even when my father and others had doubts, my belief in God has still been intact, and it is one of the things that essentially drives me even when I've had feelings numerous times that life was not worth living or that I was a failure.

I say all of this, because I don't think some of the people here have any Christians actually tell them this sort of thing. Many in the world just think it is some sort of cult full of irrational people that if they only just came to their senses, they'd stop annoying others and waging war. The fact is that religions are not evil, bad, or wrong. It is people that do bad things, not religions. Some religions may call for bad things, in which case, I'd suggest not doing them. That is a personal decision.