Some stores have moved from self chekout to highly supervised (watched over) self check out.
They would be better off to put that guard in a cashier position. Less shoplifting and better service.
And what is with the Kroger stores who cannot seem to have enough guards for the self-checkout areas? So, they close two-thirds of the stations, and everybody waits in a line, no matter what they do.
I will wait in line for the cashier. It is often faster.