...which is, as they say, bliss. I don't think that by hiding something from a child until they are grown, leaving it for them to figure out without having had any reference to it in their formative years, is really helping them. It's more like keeping them in the dark and leaving large swaths of their "map" of reality undrawn. So when they encounter the things you've hidden from them they will have no basis whatsoever to understand them.
...which is, as they say, bliss. I don't think that by hiding something from a child until they are grown, leaving it for them to figure out without having had any reference to it in their formative years, is really helping them. It's more like keeping them in the dark and leaving large swaths of their "map" of reality undrawn. So when they encounter the things you've hidden from them they will have no basis whatsoever to understand them.