[saltyoldman]

> given my orthopedist told me to stay away from anything that’s heavy on the knees, “like tennis, skiing, or, say, snowboarding,”

Obviously not knowing the background of this person, maybe they really have bad knees, but without more info, they could simply have an orthopedist that says this to all his clients, to help all of them not have problems in the future - no matter the current state.

I have decided long ago to not let anyone, especially experts, dictate what I can and can't do.