Not sure I'm following you. Self-checkout, for me, goes - load my cart, walk up to the open register (usually between 5 to 10 available), scan and bag my items, watching the total cost tally as I do so, insert my card or cash, get change, receipt and out the door. Is it different for you?
Most of the time - because I suppose WHEN I shop - there's a
line for the self-checkout. Target is the worst - their self checkout typically goes all the way down past all the registers. I think Giant closes all of its regular registers after a certain hour.
MY self-checkout often goes - scan items one at a time, machine tells me to put it in the bag - at least once, the machine tells me it's not in the bag when it clearly is - so it stops until I either take it back out or put it back in - it argues with me because I didn't put the giant paper towel or toilet paper in a BAG (because it won't fit). When I have filled all three bags and put them back in the cart, it argues with me and signals an employee and stops the checkout process -
Most of this is because - to make lots of self-checkout stations, they minimized the checkout area - they assume people are just buying a few things.
BECAUSE this happens - stores like Giant and Walmart now have signs that self-checkout is only for those with X amount of items. I think I may see that at Harris Teeter also.
It's like when you have to call customer support for something, and you have to sift through all the menus - and NONE of them address your issue - so you HAVE to press "0" because you'll never get to where you need help. Or those diagnostic screens on Windows that ask you stupid questions and at the end, it gives up and asks if it was helpful, when a human being could have fixed it in a few seconds.