Here in NZ, save for 1 recent outbreak that resulted in 130 or so cases, we've pretty much beaten it. We got to 0 once, and are heading back that way (30-40ish at present, most have been imported and are in quarantine).
What this means is, when we do get a case, we get exact info and detail ont he source.
Why i mention all this is because recently one of our cases was a hotel maintenance worker (anyone landing in NZ is put into a hotel 2 weeks).
The maintenance worker was proven to have got the virus from accessing a lift that another positive case had been in. They were never in the lift at the same time.
It didn't, but that case could have blown up and set the whole thing off again, killing dozens - which for NZ is the equivalent of 000's in big countries.
So yeah, its not as simple as the 'stay at home, let others make a choice' argument.