If professor X can move objects with his mind. How come he doesn't move his legs?

EDIT: TIL Professor X was only Telepathic and not Telekinetic as well. For some reason I always thought his futuristic hover wheelchair thingy was controlled by his mind.. I didn't grow up reading x-men.. sue me

EDIT EDIT: Apparently in the 90s he DID have a hover wheelchair.. how confusing.. lol