If nobody goes anywhere, how can the virus survive without spreading? It's going to sit on the host long enough for either them get infected and die, or them build an immunity to it. If everyone stays home, we stop/slow the spread of it through the community. Look at New Zealand for instance. Zero cases of Covid-19 are in that country right now, but guess what, they stayed home. They didn't go out and celebrate holidays, go to family BBQs, etc. They're being praised for it actually whereas we're the cow's ass of the world right now because idiots are all like "MURICA MY FREEDOM GUNS AND YOU CANT TELL ME WHAT TO DO."