Depending on where - that could put him at risk for Statutory Rape charges. Better check the age of consent on your state and advice them to put the breaks on it.
it is weird. If he was say 40 and she was 33 then that's fine. it's the same age gap. But 23 and 16.. it's almost pedofilic.
Age is just a number..
on my own experience it shouldnt be. trust me is a harm for the yougets one mentally even if u dont see it that way..
The fact that it's a age gap relationship is less of a concern as it really depends on the maturity level of those involved, but I think age is a concern here because of the potential legal jeopardy.
He's a ephebo, mind you.