[ he listens fairly attentively, still curious, because how differently people live in space is genuinely interesting to him. especially after spending nearly the last year on one single planet. ]

Sometimes bases are built on an asteroids, and asteroid belts can be hotspots for mining, with trade posts and the like. Different species cannot necessarily survive outside the climates and biospheres of their planets, but space travel is so common between planets.

Are there a lot of Belters?

[ has star wars ever considered the science behind gravity and different planets?? probably not. ]