I've got nine kids, nine dogs, three grandkids - and one in the oven. And three parrots!
It makes sense for people who are good at fighting to go out and do it-because if they're good at it, that means the fewest number of other people die.
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.