Self-checkout is convenient until several people with full sized carts try to use it and don’t know how to scan things. They’ll occupy the station for several t

Self-checkout is convenient until several people with full sized carts try to use it and don’t know how to scan things. They’ll occupy the station for several times as long as someone with a small basket. Not sure why they insist on coming through self-checkout. It takes them longer than going through the regular checkout. The self-checkout lane is labeled as 15 items but no one pays attention, even the attendant.