Dude it was 1999 not 1899. In america. I was here at that time, and I can tell you that shit was not considered normal. Her dad is an idiot. I'll share a little anecdote from one of my friends in 1999.
My friend, we'll call him Dave had been chatting up one of the local mallrat girls. He was maybe 21 or 22. He assumed the girl was around his age. She absolutely had the body of an adult college girl, so I understand why he thought that. Anyway he got her number and was very excited, but at some point in conversation her age came up and it turns out she was 13 years old. I couldn't believe it. She sure as hell did not LOOK 13, I can tell you that much.
You know what my friend did? Told her he couldn't go out with her, then warned us she was a fucking middle school girl so nobody else would try to smash. My buddy was a bit of a horndog , went through lots of girls. But he never even considered the idea of doing anything sexual with a girl that young, even if she was already fully physically developed. Because that's something that's just an ingrained part of morality here.
So you can see why we look at people seemingly supporting or encouraging such relationships with suspicion. That's why I try to pay attention to where posters are from when this topic comes up. It's pretty suspect for an american for example to act like this stuff is benign. We know very well that often it is not, and the damaged caused is severe and usually permanent.