These retirees are generally well off financially. They frequently return home to their families out of state and travel a lot whether by cruise, RV, or air. They dine out constantly and meet in the town squares for dancing and social activities in large numbers. I still strongly suspect there's some x-factor for Covid that protects people from it's worst effects. That could be vitamin D levels or some other vaccine they already received.
At any rate, this is why I argue each local community should deal with situation as it evolves. You can't pretend the virus is hitting everywhere equally at once and it makes no sense to shut businesses down when your local hospital is at less than 50% capacity.
Are they currently "dining out constantly and meeting in the town square for dancing"? I suspect they probably are aware of the high IFR in their demographic and acting accordingly.
At any rate, this is why I argue each local community should deal with situation as it evolves. You can't pretend the virus is hitting everywhere equally at once and it makes no sense to shut businesses down when your local hospital is at less than 50% capacity.