Definitely going to say yes.
Look at what Leonardo DiCaprio looked like when he was 22 and filming Titanic. SO feminine and youthful and "pretty," very androgynous, smooth skin, bright eyes, soft all over. Look at what he looks like now, in his late-30s. Pretty much just another completely-male-looking guy. More male hairline, thicker facial skin, a much more male-looking facial muscle structure, just blockier and heftier in general. Testosterone doesn't affect you as strongly as it does at puberty once you're done with it, but it keeps doing subtle things to your face, skin, muscles, and hair through pretty much your entire life, making you look more and more male.
I would NOT recommend orchiectomy until you're absolutely positively 100% sure that you're transitioning, but starting young and therefore preserving your youthful more androgynous features is definitely recommended if you're serious about transitioning. Still, though, there's barely any difference between starting at 20 and starting at 21 or 22, so it's not like you need to rush it.
