Why would anyone do this at home when there are tons of places doing free testing.
So they're not on some database that will be used for God knows what.
I bought several home test kits for about $25 each. My kids were at their mom's house and a young cousin came over. The next day the cousin tested positive for Covid. So my kids thought they had been exposed. Fortunately I had provided them with test kits. They used it 3 days after the exposer and again at 6 days. Both were negative.
So I bought more. Money well spent.