i mean, neither are really "uwu"...
young and naive are idealistically kinda gullible idiots
airheaded bimbos are unaware idiots.
uwu thing is more sorta meme aware, certain kind of culture aware, attention whore type of girl. does go for the "cutesy" ish idea, but in a more cringe sort of way than adorable or "innocent" sort of way.
or at least, that's more my understanding of it. tiktok thot, more than naive or airhead.
if your only criteria for representation of ladies in this game is those, doesn't really fit, no. but then, that's not the only females here, either...