Yes, I was a Lutheran who also got my first college degree at one of its colleges. I also took 5 religion classes while at that college. I then taught a couple of the adult bible study classes at one of the churches I was a member of. I will admit that it took me three times of reading the bible from beginning to end to finally question it. I was also looking at my college notes while doing that and ultimately couldn't reconcile the contradictions and atrocities.

I was born into a Jewish family and doubted religion most of my life. Being Jewish was also more about culture in my family, so not being religious wasn't a big issue.

I suppose I had what my parents tried brainwashing me with. Resistance was not futile
I never really got on board. I did what I had to but I didn't really get why the Church (Catholic) was so backwards and outdated. Then I realized because the bible hasn't really changed so neither can the dogma

Yes, I was born into a Hindu family and became atheist by age of 15-16 out of curiousity to know more about concept of God when none of my praying worked ?

I was born into a Mormon family. Always doubted in the back of my mind, but did go through periods of trying to believe until I was 16.

It still took me until I was 23, due to all the brain wshing I had growing up to come to terms with beign gay, but once I accepted it I came out as both beign gay and atheist at the same time. I figured that also coming out as atheist would keep my parents/family form beign able to throw religious judgements at me about my beign gay, and it pretty much worked. They had no ammunition left to argue with.