Sex isn't that hard to figure out. It doesn't take years of experimentation or self-searching. If you're a boy, you have sex with your wife. If you're a girl, you have sex with your husband. Parents teach these truths to their children if they love them. They don't "hope they figure it out."
Shalom.
of course, it is natural.
that is why 10 to 12 year olds do not need rushed into it.