I guess I just don't understand this mind set, especially at a grocery store where many items don't have a bar code. At a poorly owned and and managed grocery

I guess I just don't understand this mind set, especially at a grocery store where many items don't have a bar code. At a poorly owned and and managed grocery store, that is chronically understaffed, as someone giving them money, you'd rather temporarily become an unpaid employee and waste your time looking up the product codes for apples and onions, using a system that's purposefully less efficient than what the real cashiers use, instead of just going to a store that doesn't make you work for them to pay them money. In places where it's as bad as you've described there's often a line and wait for self check out. I've just abandoned my shopping and went somewhere else if I have over a handful of items