Longer wait times, more thefts and fewer jobs. I consult for many retail stores and they are mostly considering cutting back.
With a cashier you wait for someone that does it all day for a living. With selfcheckout you wait in line for multiple people that mostly cant use the machines. Then the constant errors and headaches come.
To keep the line moving during busy times, the attendants always override the antitheft devices. If you arent dressed like a bum, you can walk out with hundreds of dollars in merch easily. It’s a joke
The my store must be stupid and not follow good business practices. Unusual for WalMart
My experience is nothing like what you describe. The more these proliferate the more people will be sued to it.