I was an atheist for most of my life, and the reason was that some people I considered to be smart told me when I was a teenager it was stupid to believe in God, that there was no evidence for God and that people needed to grow up and face life without God. Well I'd never depended on God personally before anyway, though I had a sort of thin belief based on childhood church attendance, so I had no problem giving up my belief such as it was, for a life of "mature self-reliance," the approval of smart friends and teachers, and of course lots of fun kinds of sin. I felt a little pang of loss but that was about it.
Edited by Faith, : grammar, clarity