The masks are never going away. No grocery store or retail establishment will ever remove the rule to wear a mask inside their store now that shoppers have grown accustomed to doing so anymore than they'd let barefoot and shirtless shoppers back in.
"No shirt, no shoes, no service" will now be replaced by "No shirt, no shoes, no mask, no service".
I am pretty sure that some people always will do it, but honestly, tons of rich people, who clearly are idolized by the lower class people, show that they are grudging about it.