Earlier quoted context omitted.
In the US we have an additional problem that 2 weeks of hospitalization means certain bankruptcy for many people (myself included). So it might be rather difficult to get people to voluntarily show up for tests and such.
This is the sort of thing one would worry about in developing countries. It's so sad that it's an issue in one of the richest countries on the planet.
Imagine you have no insurance, had contact with a coronavirus case, and are now feeling ill. What do you do?
If you do the right thing, you're looking at a 100% chance of having your financial life permanently destroyed.
If you just stay home and ride it out, it looks like you've got an 80% or so (correct me if I'm wrong?) chance of being perfectly fine in a week or two.