It should be the '10 items or fewer' line. Not, a full cart. If you can't carry the items in a basket, you need to go in a regular line.
My local grocery store has like 9 self check outs, with 1 person sometimes staffed to fix them when they fail (not if, when) and they have 1 regular lane open. And everything ends up with a long line and it's infuriating. Oh and the manger standing in the back 'monitoring things' acting like they're doing anything, but isn't doing the right thing and opening up a new lane.
Also, far too many people are over leaving into 'im an introvert' and playing it up to poorly written teen sitcom levels.
Starting October 1st Walmart customers will be required to unload the merchandise trucks on the back dock. This will be in addition to your self checkout duties.
I'm not sure I agree. Why does it matter if it is 10 items or 30? I do the same work as a cashier, albeit understandably at a slower pace.
Sounds like the issue for you is that the self checkouts keep failing for random reasons and stalling the lines - in which case you're trying to minimize the symptom instead of demanding them to make the self checkouts work and have the monitoring person be properly trained to handle issues if they do arise.
Where I live they are usually working fine and the line is a few people at best, even if they have a ton of items to scan.
I can only agree that there should be limits with the style of self-checkout. The little beltless ones they have tons of should have an item limit. The belted ones shouldn't.
But if that was the case, they better keep the belted ones the fuck open. About 60% of the time I go shopping, the belted check out lanes (even the ones manned by a cashier) are closed and only the small ones, designed for a small sale, self-checkouts, are open.