Who is this 50 year old man trying to act like a young pop star ? rfellowkids <| sep |> I can check myself out faster than someone else could . I find this really hard to believe . Cashiers spend 8 hours per day every day bagging so they get really good at doing it efficiently , cashiers will have 99 % of the produce codes memorized so they don ' t have to waste any time looking up items , and they can scan and bag while you ' re unloading meaning the work is shared between two people . That doesn ' t even take into consideration how slow the self checkout machines are at scanning a normal register scans a UPC in like 1 second while the selfcheckouts take much longer to scan the item and won ' t let you continue until you ' ve bagged the item so it can register the weight . Basically you just don ' t want to interact with the cashier .