>>213496827This is just culturally true now.
In the 70s nobody would've given a shit about 18, and so on.
Maybe in 20 or 30 years a 25 years old will be considered underdeveloped for for a proper relationship.
I've already heard girls refer to the moves as a "23 years old kid" because some older guy was chatting them up.
So the perception changes over time.