I’m going to grudgingly have to sort of agree with Yppej here. Among the various circles I belong to (church, diving, etc.), there are plenty of people who say their vulnerable relatives will NOT stay home. Or those who live with the very vulnerable will not stay home. 20-somethings with respiratory issues who are gathering with friends multiple times a week. Elderly folks with all sorts of health conditions who meet in each other’s homes a lot. They keep going out shopping, refusing all offers of help. Hour long wanders through Walmart or Target, not quick trips.

Here the private gatherings seem to be the source of a lot of spread.