system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: If you have more than 15 items you should not be able to use self checkout.

This irks me to no end. I go into the store for one or 2 items, easy enough I will just use self checkout and be on my way in 5 minutes or so. NOPE. Get to self check out and it is backed up with people that have A CART FULL OF SHIT. WHY?!? Inevitably these peoplw have things that need codes put in or they have bagging errors and they are backing up the queue for people like me that would take less than a minute to check out. If you cannot get your items through self checkout, at least scanned, in 2 minutes you should not be there. People with a cart load of groceries should be with a dedicated cashier, not bagging and checking their own stuff. Change my view.
gpt
Self checkout has never been about speed, it's been about saving the supermarket money. There is not a posted limit on the number of items, it's not the express checkout lane (which is poorly enforced to start with, and there's someone there who can shame you easily for it). I'd say the logistical problems of getting a lot of groceries through it is a design flaw rather than a user flaw. There should be larger counters and more bagging space at each station to make it more user friendly.