So, since we’ve kind of accepted that the wealth estimates are likely bunk, we’re back to the issue of multiple individuals having no insurance, by which I suspect they have Medicare (by age) but no supplemental coverage. So I grabbed a site of the web which gives us a bit of an idea of actual costs depending upon coverage:
https://www.valuepenguin.com/best-medicare-supplement-plans#:~:text=The%20average%20cost%20of%20a,more%20than%20%24400%20per%20month.
Now of course, this probably varies depending on all the other factors in insurance, and it varies quite a bit depending on how much of the possible gap it covers.
The average cost of a Medicare Supplement plan is $139 per month for 2023. However, rates can vary widely from about $50 to more than $400 per month.
For Denny Laine, the killer issue -seems- to be rehab. As for Mary Lou Retton, unknown as of the linked article. I don’t know how much if at all of rehab would fall under Medicare normally, but I would have expected that most conventional pneumonia treatments would be covered minus of course, any gap/co-insurance.
Still, assuming they both signed up for Medicare when normally eligible and didn’t have to deal with any health issues that might have excluded them from full coverage outside the protected enrollment period, I’d be guessing solid extra coverage would have been around $150 per month with something like Plan G.
[ yes, big assumption, but I don’t have access to their Medicare details! ]
Now that isn’t cheap by any means. But it’s probably bearable IF one assumes even 20% of the net worth estimates were correct. Unless most/all that net worth is in unusable assets, such as their home (as @TruCelt pointed out) or retirement accounts that by tapping, they’d be crippling their own current and future monthly cost of living. IE sell your house (not a great idea right now) at a possible lowball cost for the immediate funds, and then having monthly costs of paying for an apartment, all the taxes, etc etc etc. Or liquidate a large portion of retirement savings, and find you have hundreds of dollars less in monthly income going forward, on what may already be a limited budget.
So either way, I’d bet that 1) the net worth estimates are bunk, and 2) that any assets they do have are in such a form as to be risky to tap. So the crowdfunding may be a less than ideal, but effective shortish term option while they consider what future option is the least of evils.