It’s funny how this puritan morality got into people’s minds, like someone three months away from eighteenth birthday is a literal child that needs to be protected at all cost from everything - especially themselves; but after those three months it’s fully grown adult that has to get their shit together.

“I’m eighteen, I can’t believe we had seventeen year old child here! We’re bunch of pedos. I’m going to retch!”

Just ban minors if it’s against the rules and don’t make a big deal out of it.