You're being cast for your acting ability. It's not based on the way your body functions. If you're playing a lead in a movie, it's for that character and they'll tailor it to you. In a dance company, you have to fit in a definite mold.
“Good management is the art of making problems so interesting and their solutions so constructive that everyone wants to get to work and deal with them.”
“The reason I wanted to be an actor is that I don't want to play me for the rest of my life and make money out of that.”