I'm not gonna argue your point with you Alicat, because I like you.
But, if someone DID want to argue with you, they might ask "Are people on the tee really going to be standing within 6 feet from your mother? And if truly so, wouldn't it make more sense for your mother to move 2-3 feet within her backyard so the residents of the city could have an activity that resembles normal? This person might ask whether people who are at particularly high risk ought to take extra precautions themselves rather than extending the restrictive social rules we already have in place just to make an incredibly unlikely event become a sliver of a hair more incredibly unlikely.
Personally, I think of my deceased grandmother who used to take me driving in her Titanic-sized car when she was 85 years old. She drove 15-20 mph below the speed limit, put everyone around her at risk with poor eyesight and glacier-slow reaction times, and was rattled by people passing her at the speed limit. Now, should those people slow down to match her pace so as to not run the risk of alarming her and increasing her chance to make a mistake that could hurt her, or people around her, or should she maybe consider whether it's still safe for her to be driving? Maybe take the bus, or get a ride from her son (my Dad, lol).
But again, I like you Alicat, so I would never try to fashion that argument.