Good editions of fairy tales from around the world is perfectly good exposure: variations on how people screw up when making bargains with lying sycophantic entities who do not have the humans’ best interests at heart. I don’t see any reason to expose them directly to the lying sycophantic entities.
I actually have sort of complicated thoughts about when exposing kids to gen AI is least harmful (because ‘never’ is not an option), so it depends on if it’s chances of making you insane are higher or lower depending on if you get exposed to it as a child or adult.