Unless it's detrimental to their health due to a pre-existing medical condition, I don't see what the problem is with wearing a mask; it's not like you need to have it on 24/7.
I find it disappointing that there are people refusing to wear masks even though they are able to do so, but it doesn't surprise me. A lot of the public are idiots, and pretty much need to have their backsides wiped for them and laws put in place for their own safety; there are plenty of people out there who (if they were given the option from the start of next week, for instance) wouldn't wear a seatbelt or crash helmet whilst out and about on the road, even though we all know how essential they are in saving lives and preventing serious injury.
So, just wear a mask and surrender to our lizard people overlords from the holographic moon. Believe me, it will be better for all concerned if you do.