I was raised Catholic and attended Catholic schools from 4th-12th grade levels. I was confirmed in 8th grade, the same year I felt an attraction to the Monastic life.
Discovered girls, rock music, and Wicca in high school. I read a lot about Wicca, and had a Wiccan girlfriend, but never really practiced it. I mostly had(and still have) a certain resentment of Christian proselytism.
I acquired some George Harrison KRSNA books in the summer of 2005, and dabbled in that. I even learned to read Devanagari...for about a week.
I've been toying with the idea of becoming a Catholic again or joining the Episcopal Church the past few years, but, as I mentioned, I'm still recovering from my resentment of Christianity.
I discovered The Baha'i Faith on an OKCupid test a few months ago, and I'm preparing to declare and enroll myself with the Baha'is.
I don't think that many religious people just pick up on what they were raised with. Although, if they aren't presented with any other option, that's likely where they'll turn. Personally, I would have gone back to Christianity because I can't hide from the faith that I have recently recovered...and been miserable. Since I found the Baha'is, I can have my faith and enjoy it too!
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"Honest disagreement is often a good sign of progress."
"Freedom is not worth having if it does not include the freedom to make mistakes."
-Mahatma Gandhi