re: OT young baws ages 21-26, could you date a high schooler?

A girl at my school was dating a 23 yr old when she was 16. They basically lived together too since her parents were divorced and mom just DGAF. Guy wasn't really a loser though. Owned his own business, was a former Mr. Louisiana for bodybuilding, etc. He went to prom with her and hung out with us on weekends. Of course this was the 90's so even though we were all underage, we still hung out in bars like Quill's, Bruno's, The Duck, Tuck's, AT II's, etc every weekend. Probably wasn't much different for him than a girl his own age.
No one really seemed to care back then. Nowadays, everyone would lose their mind.