There is a good point to be made that getting out of one’s comfort zone is not for everyone. As an immigrant to this country, I would never have left the many comforts of my home country if I did not see the long term benefit of being outside of my comfort zone. It works both ways. It can also be a great way for frail men to gain relief by rationalizing out of their lack of fortitude. If it brings them happiness, I am all for it.