Technically I was raised in a completely non-religious household so I was never myself properly religious but I always found the reasons why that was a thing really interesting.

My grandfather on my Dad's side did a stint in WWII protecting the Vatican as part of the Canadian forces. He never spoke about what actually happened there (because he wasn't allowed to) but it shook his Catholic foundations to the marrow and was never able to reconcile what happened with his faith. When he returned home he had a massive row with the priest at his church that he left. Half the family disowned him for leaving the church. My father never particularly went to church though his mother remained an Anglican.

On my Mother's side my grandparents made an enemy of the local diocese when they and a bunch of their friends conspired to run a priest out of town for being a complete asshole to children publicly and a child molester privately. My grandmother basically swapped to playing organ at another smaller church but the rest of the family became very agnostic and really didn't want to expose their kids to the faith.

So I basically wasn't raised with faith because three generations back everybody in my family had a religious crisis... And I am SO glad you have no idea.