Good Question

THEY HAVE DEFIED SCIENCE--

having more than one sun doesn't affect the gravity of a planet depending on how old Tatooine is it could just be rotating in one place because both of the suns are pulling with the same amount of force

well, I know it's more about rotation, but, mass of stars has an impact on rotation.......we really don't know anything about Tatooine's 2 stars so, it's conjecture and fun so........

yeah thats true itd be cool if they did like a full report thing on it

Because surface gravity depends on the mass and radius of the planet, and has nothing to do with the sun.