Rabbit_in_the_Moon - This is sort of my thought except that I distinctly remember sitting in Sunday school in third grade listening to a woman teach a story from the bible. I don't recall the exact story, but I do remember thinking, "do these people really believe this nonsense or is it another grown up lie like santa" (I was raised Jewish but well aware of this lie).
Preachers are just salesmen. How confident would you be having your 8 year old daughter negotiate the price of a car? She's just not ready for it. Remember how easily you were duped at that age to believe in Santa Claus or the Tooth Fairy?
If you expose her only to Christians she is likely to be Christian. If you expose her only to Buddhists she's more likely to become Buddhist. We are conditioned beings. I would make sure you raise her grounded in critical thinking skills and the rest will fall into place.
I'm just not sure she'll question it even though, let's be honest here, the Jesus story is a pretty big pill to swallow.
You were sitting in SUnday school, probably miserable as fuck.
Huge difference between that and "having a blast, diving through mud pits, and ziplining with your pal Jesus!"
When your having fun, making new friends, and going on adventures (while getting subtly indoctrinated) it is damn hard to use critical thinking. Especially for an eight year old.
This is how people get wrapped up in all sorts of dangerous clubs.