I wonder how this affects covid safety. Are cashiers like distribution hubs for it since they are exposed to so many people, wheras customers are only exposer

I wonder how this affects covid safety. Are cashiers like distribution hubs for it since they are exposed to so many people, wheras customers are only exposer to a few? Self checkout is also faster than employee checkout has been for as long as I can remember. It seems like most people feel they are safer, so at the very least it's a better customer experience for many.