My friend is pushing 80 and not in good health. He isn’t interested in DIY at this stage in his life.
Maybe that's his problem. I have a friend who is pushing 90 and is in great health. (He's currently piloting his own airplane somewhere 2000 miles from his home.) He is DIY all the way. DIY keeps you healthy and active. Another non DIY friend is in his 60's and can't even tie his own shoelaces.