Our local Costco used to have these, but they still required dedicate babysitter to handle customers who couldn't find bar codes, or customers with overly large

Our local Costco used to have these, but they still required dedicate babysitter to handle customers who couldn't find bar codes, or customers with overly large or heavy items or customer with membership issues or customers with payment method issues, etc... Eventually they got rid of them in favor of standard checkout lanes.