"Depends on the age and maturity of the child. I was taken to a church service by my aunt when i was about seven or eight. They had to leave because I kept interrupting the service by asking questions.
But on the whole, I'd wager 12-13 is a safe…"
"You bring up a good point Shine. The problem is that the people you're describing tend to view their religion as such a central part of their personal identity, any degree of questioning their world view is taken as a personal attack.