There used to be, mind you. Hutts couldn't pilot (or get in, I think) fighters. They couldn't pilot freighters but could be ferried around... Capships they were fine with though. Can't recall the other races' restrictions if any.
Gamorreans were also prohibited from flying fighters.
Once, I flew an A-Wing in a mission, whose cockpit had to be, let's call it, expanded to fit his wide girth. I even made a custom image of an A-Wing with him in it for a GNS that discussed that operation.
So feel free to roleplay any changes you need done to your gear to fit your Jawa frame.