oftentimes when you look back on media you enjoyed as a child it's like hello why did they let a 14 year old fight a dragon? but star wars holds up. luke is 19. his reaction to losing his whole family is to say "alright, let's do this. I'm gonna learn to meditate and hire a sexy drug dealer and his friend who's a furry to be my uber across the galaxy so I can blow up a fascist government" that's something only a 19 y/o would do