One of the primary concepts of leadership is that you won’t ask another to do something you won’t/can’t do yourself.
Yes, I absolutely believe in that. In certain civilian jobs, it's okay to put a handicapped person in charge. But on the front lines in battle, it's problematic. Too many things can go wrong. Lead by example.
tell that to the generals at the top. thqt might be a good retirement criteria. i’d rather have patton-type generals than obese old men and women.