What I would note, though, is that people never seem to question what a 40+ year old man would see in an 18/19 year old girl
when they absolutely ****ing should and it falls into exactly the same "legal, but still awful" category. I honestly find anyone who is 35+ being interested in anyone under 25 pretty odd. Once everyone is 30+ then I see it more as an "each to their own" situation... like I personally don't understand why a 30 year old would want a 60 year old partner but it's not "creepy" at that point, as everyone is clearly a grown-up of some description.
But then I know that many people see it as "you turn 18, you are now an adult" and that's that. Personally I can't look at a 20 year old and see anything other than a kid
.