When I was a cashier, if I had multiple items, I could type “12 @ (price).” As an unpaid self-check cashier, I do not have this option, which slows me down considerably.
Fair play, contemporary cashiers either don’t have or don’t use this feature, either.
That was my experience as well, so I didn’t have much in common with them, and left after one day. I found one classmate I got along well with (yes, a Brain, with a side order of Drama Club) living as a professor at Penn State, may look him up later this spring.
The camera always thinks my manuevers indicate diabolical thievery, so always need the supervising clerk to utter the incantations for me to clear it (Coke to MMM). Still gets me out much faster than waiting in a single line, esp. as like Maus I was a cashier years ago, the 1st year they rolled out UPC codes/scanners in point of fact. Also echoing saje’s I want to bag it my way; more than once with an employee bagging a perishable has ended up in a bag of non-perishables, and welp perished as I didn’t know it was in there.
We are all different.
I go to the checkout cashier so I can lean on my cart as long as possible while they bag and load it up.
I don’t care how it is bagged because I end up needing to carry things in the house one at a time anyways.
If I manage to snag one of the shopping scooters I let them bag and load up the basket.
I will never use a self check out voluntarily 
That’s the major takeaway from my years at the SDMB.
I don’t mind self checkout, (and sometimes prefer it) but I also don’t care how my groceries are bagged. It’s nice to be able to avoid a human interaction (especially when buying lube or adult diapers). Our store has pretty good self-check attendants who verify my age quickly when I’m buying wine.
My issue used to be that the sensors went crazy if i put a bag in the bagging section. However, this seems to be fixed in later models.
Yeah, they’ve given up using weight confirmation for each item at self checkout.
I forgot about the local Albertsons chain that reads a novel after each item.
I can scan a lot faster than it can get thru it’s sphiel so I have to stop & wait for it to catch up because you can’t hear any scan beeps while it’s talking. Just tell me the net price to save me time, damnit