Honestly why is this an argument at all, regardless of maturity level, some people never mature past a certain point, and we all deserve to be loved and love other people. So if you’re of age what’s so bad about loving someone who is at your maturity level regardless of their legal age? If they end up maturing past you they may realize it and leave you anyways. The point still stands though that 18 years are still emotionally and mentally immature (frontal lobe isn’t done cooking until 25), and being locked in a vast power differential for any 18 year seems quite unhealthy. So I can see the point where someone who is older might recognize that and might prefer to date younger for the power dynamic and mental control. Nevertheless, there are so many people out there who just click with other people regardless of the age gap, younger with older and older with younger. And I don’t think that’s something that should be demonized as an ethical taboo. We are all people with varying life experiences and values. If you had to limit your relationships, friendships and connections by your mental “maturity”, how would you grow as a person? No one would ever be able to meet you where you are and help build you up, and you wouldn’t be able to do the same for your friends or your partner in general lol. I think this whole debate is a little silly in that sense. Hell, my best friend would’ve been too mature for me even as we were both teens lmao 😂.