The 'job killers' argument is kinda bullshit. I want to kill jobs - I want to eliminate all labor that can be automated, such that in the ideal perfect future, no human ever has to work; they can spend every moment doing things they enjoy without worry.
But self checkout is not automation. No human work has been eliminated. It is the same exact fucking checkout process, only now the customer does it instead, and the store doesn't pay the cashier. And no they don't pass that savings on to you because of course they don't, they just pocket the difference.
That's all true, but just to be a bit nitpicky I'd argue some human work has indeed been eliminated by self checkout.
Cashiers main job is to scan your stuff, but in order to do that they also have to stand around waiting for you and other customers for hours on end, and when you arrive they have to do emotional labor of acting cheerful and upbeat
Still I wish we didn't live in a society where increased efficiency leads to people being homeless with no jobs.
There's at the very least a lot of social and managerial pressure to act cheerful. Even if you didn't do it, many people would because it's effectively required of them. Something being technically a choice doesn't remove the social pressures that make many feel that it's not a choice. Plus I wouldn't be surprised if it's been used as rationale to fire people before, which means that for some, it isn't a choice (and most people are scared of losing their jobs, so won't try to find out).
In tipped roles, it would definitely result in less pay.
I can't think of the last time someone working a register was anything more than polite. 99.9% of the time, we don't speak in any meaningful way. Their work neither adds value to nor takes value from my day. Which, to be clear, makes me want their jobs to be much, much better. At least give them something to sit on, for goodness sake.
With normal checkout the customer is still the one putting groceries on the belt, and in most cases putting the bags back into the cart. Hell, at Aldi's you have to bag the shit yourself anyways.
I don't see how "scan and bag" is any more intensive than "place everything on belt(which is annoying tetris when you have lots of shit), stand around waiting for cashier to scan and bag".
Aldi backs up that tradeoff with commensurately lower prices, though.
"intensive" isn't the right term here, IMO. Pushing me to do the cashier work via self-checkout is more effort than what I do at Aldi. It doesn't need to be "carry this pallet across the Grand Canyon" to be objectionable.
And the cashier is probably going to screw up the bagging. Does the ice cream go in the insulated re-usable bag, or does it go in a regular bag next to the room temperature canned goods? Pretty good chance it goes into the uninsulated bag, the tomatoes end up in the insulated bag with the milk, etc.
I love your spirit, but that world doesn't exist. Capitalists and conservatives will never allow for a utopian society where people can enjoy their lives on the masses, no matter how advanced production or whatever elses automation becomes. It's always going to be millions suffering and a small majority having more wealth and power than they can even use in a lifetime.