Its you making things creepy, it's pretty clear he was talking about when he was in school, as was I.
Yes its creepy for an old man to have sex with 16yr old, but if that is the age of consent, then is not illegal.
Trafficking them is.
Saying 'underage girls' implies much younger.
I don't think anyone here can get on their moral high horse about sex with young girls, I am sure most members have paid for girls 30+yrs younger than them. Some of the threads here are proof of that.