Yokozuna514
2nd Black Belt
We have an instructor in our school that is 58 and teaches multiple classes. People a 1/3 his age have a hard time keeping up. If I had a choice of schools to join and one had an instructor that would do every sit up/push up vs one that had to 'take a break' when he taught, I would pick the school that had the guy that did the work.I would agree with these 3 with a caveat on the second. Of course, the teacher should be physically capable of doing what they ask the students to do. But, the instructor might have already taught classes earlier in the day, so I don't necessarily expect the head instructor to be doing pushups and situps along with the class every time.
Sure, everyone can have an off day or be injured but all things created equally, that's the guy I want to learn from because he has a level of fitness and work ethic that I want to have when I am studying a MA.