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.
“I was showing early symptoms of becoming a professional baseball man. I was lying to the press.”
“Revenge is an act of passion; vengeance of justice. Injuries are revenged; crimes are avenged.”