Interesting observation today - I visited my local ABC store (liquor store for non-North Carolinians) - where I had observed the highest incidence of customers no longer wearing masks.
The store employees have all remained masked and kept the huge plexiglass barriers up at the check out counter. They have now reinstated the "In only" and "Exit only" door signs, and made the aisle traffic one way again. I wasn't expecting it and nearly fell over a barrier.