I started using grocery self-checkouts during COVID, but I’ve kept using them because there’s rarely a line (and I’m a misanthrope). I’d probably go back to using regular human checkouts if I had to dig through all my crap to prove what I bought.
Having said that, I’ve noticed myself making mistakes. I’ve accidentally failed to scan an item, and I’ve accidentally entered incorrect codes for produce. When I notice, I fix them, but I’ve probably missed a few.
I guess the easiest answer is for grocery chains to reinvest some of those windfall profits and hire more cashiers.
Even this corporate shill website lists ‘high’ amounts of theft with “According to some industry data” as “an average-sized food retail store in Canada can have between $2,000 and $5,000 worth of groceries stolen per week”
So not only are those inflated numbers, that’s still a tiny number. There are about 15,000-16,000 grocery stores in Canada. Even if every single one of those lost 5000 per week, that’s 3,900,000,000 per year. They make over 9,000,000,000 per month - or 108,000,000,000 per year.
Even at their highest possible (and likely lying) numbers, that’s 0.0361111111111111 % lost to theft.
Sure, some hyberbole, but barely. (And I worked at Costco and saw their theft numbers, and even they have laughably low ones.)