It’s not illegal, but it’s still weird, creepy and potentially harmful and no amount of lambasting about “the problematic age gap discourse” will make it not true.
while there is obviously a power dynamic between differently aged people
IDK, I feel like that’s an incomplete proposition, to some extent at least.
The things that typically make for an “power-dynamic” in a relationship, like accumulated personal wealth, social experience, social networks & ones overall position in society are all to some extent or another correlated with age to some extent. But y’know, none of those are necessarily guarantees; at least not within the specific age-range specified in the post at any rate.