At what age did you become an atheist/agnostic? And what brought that about?

[AmBlue]

36. In my 30s

I had my serious doubts and became jaded as a teen, so took a big breather from church back then and called myself agnostic at that time. At the invitation of a friend, I decided to give church another shot in my early 30s, thinking the whole faith thing, and the lack thereof, was my fault. So I started back to a new church, in a new city... fresh beginnings. After the birth of my first child, however, and witnessing the same old blatant hypocrisy of those in my supposed "church family," that I witnessed from the time I was a kid, I was well and truly done for good. Solidly agnostic now, because I do believe there is some universal energy at the source of all life, but it ain't anything like the whoppers and manipulations told in the Bible.