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.
“Look, if I ever stop being grateful for gigs, I just need to stop. Because this business is... you know, it's just so kind of job-to-job, and the fact that I've continued working... I'm just incredibly thankful for it. And I never, ever take it for granted.”
“Most of the people who had PCs did not have modems and could not use those PCs as communicating devices. They really were using them for spreadsheets or word processing or storing recipes or playing games or what have you.”