The Costco I go to took their self-checkout lanes out a couple of years ago. And even stores like Home Depot who have them also have one or two people keeping an eye on the people using it.
I'm pretty sure the self-checkout is where Home Depot had their big security breech. Someone at a self-checkout installed some kind of software. I think it was an inside job - someone who had access to the software key.
I personally never liked self checkout. Its OK for one or two items,,but,,if you have a cartful of things, I appreciate he employee ringing it up and bagging it for me.
And I’m honest, but always wondered about shoplifters with self checkout. It would be so easy to “miss” scanning a few items here and there in a full cart.