I had no religious upbringing whatsoever, for which I am now thankful. Oh, except I was baptized because everyone else in the family is religious (catholic), and my parents gave in to that.
I have a real problem with organised churches or cults, and a problem with the idea of there being a god. I have always been an atheist, agnostic at best sometimes, but I picked "Buddhist" because I wanted to say which sort of spirituality I'd be closest to. I have started reading about it, and I love it! Hey, there's no god to bow to, and no judgement of people or actions such as 'this is RIGHT, this is WRONG'; the only criteria is: 'does this make me and others suffer?' If it does, best seems to get to learn how to avoid it, that's 'all'!