@sarahpanda It feels as if the answer is yes and no! In some chains or even in some stores within a chain, there are very few cashiers. What those stores have done in my arrea is station someone in the self-serve area to help and to quickly solve problems.
I'm not optimistic we're going back to total cashier checkout in our area. We're already at what is called full employment, so there are more jobs available than there are people to fill them. Supermarkets have always run on one of the lowest profit margins in business, and cashiers earn more than minimum wage, I think. I don't love self checkout, but as long as there are helpers nearby I manage.
The Publix closest to my home, carrently the oldest and smallest of the six easiest to get to, is going to close down after the New Year to enlarge and remodel. That makes me more unhappy than doing self-checkout. I'll miss being able to stop in for a very few items, something I've gone back to now that Covid seems to be more under control.