Absolutely agree, PC.
As to the "thorny family issue," I guess all I can say is that it seems to me the solution is that the concerns of the most risk-averse relatives are respected - e.g., if they don't want contact, other relatives don't visit them, or expect to be visited by them. I don't have to agree with the most risk-averse sister-in-law; but if she doesn't want me to visit, I won't - and I won't be offended by that, because even if I disagree about the real risk, I respect her concern, or fear, or whatever it is.
A close-to-home example: Based on at least most current evidence, the risk of infection from touching surfaces that others have touched recently is close to nil. Not zero, I assume, but really low. But...my wife remains concerned. So we quarantine incoming mail for a day or two (it has a quarantine spot on the porch). When we grocery shop (about once every three weeks, now), things that can be quarantined on the porch (dry goods, pretty much anything in sealed packages that doesn't require refrigeration) is quarantined. Things that have to go into the fridge or freezer are disinfected (if in sealed packaging); produce is washed in soapy water, and then thoroughly rinsed.
This is probably overkill. If I lived alone, I would probably skip much of this. But it makes my wife feel more secure. That's worth... rather a lot, actually!
The key, with all of these inter-personal issues, is that it works better if the parties can understand what the other parties are feeling - where they're coming from - as opposed to being consumed with what "I want..." We've been married for almost 37 years, and keeping "I want..." in its place is a large part of marital success.