If I go to a Walgreens, CVS, Palo Alto Medical, Kaiser, Chinese Hospital - I know that those organizations are billing my insurance. No out of pocket co-pay, but it was not free.
If I go to SF Dept of Public Health, I know that it's a government funded testing facility. Not free. Paid for with my tax dollars.
But when some random person sets up a flea market tent and folding table on the sidewalk, I wonder....... Out of the goodness of his heart, he is paying for the testing out of his own pocket? Who is this person, with my confidential information? Is the guy on the sidewalk trained? Is he handling the samples properly? Is he there wearing a surgical mask below his nostrils, breathing in Covid from an infected person, then exhaling on me? Does that guy change his gloves between testing? Or is he wearing the same gloves all day, contaminated, and then contaminating people and test samples?