It does go back throughout history. Age of consent is only a recent thing and if you look back at most countries it was normal to have girls married off at 13 or 14. Still is in some communities. It's horrible to think how it used to be when there were no protections for the children who should never have been put in that kind of position.

People can be wired differently and it's hard to understand those who have this kind of mindset but at least if the subject is talked about it can be recognized and prevented. It's better to have the discussion rather than just saying how wrong it is keeping them hidden where anything can happen.