Walmart employees, including any security they may have, has been told they can’t touch them as they walk out with stuff. A friend recently witnessed a lady with a full basket of groceries just walking out screaming at the employees.....you can’t touch me! And they don’t.
Perhaps it is time to go back to the old fashioned stores of the 1800s that were set up like a bank.
You go in, up to a cashier and give him your list. He then sends a boy in back to fill your order and bring it to the cashier who then takes your money and gives you the merchandise.