>>96252793
>1)
I'm an art teacher (high school level) and I often get nerdy people. If they get into a higher institution (like art academies) I reward them by teaching them D&D3.5 (sorry, I don't know any better system) through a short campaign. The joy comes from seeing them actually start thinking creatively by making characters, researching mechanics, looking up or making up a lore and doing art instead of simply consooming media.
>2)
It inspires me to draw. The stuff that happens during session is very spontaneous and it produces situations that I myself wouldn't think of.
>3)
Socializing. While it doesn't impact me much, I see it help a lot of younger people since everyone is stuck in digital hell.