Everyone I've talked to, when they add self-checkouts, no jobs are lost, they just move to a different area.

My Walmart, for example, normally only had like two cashiers open, now they have 1-2 plus self-checkout which has a few people there to help people....that means MORE jobs or hours, whichever, for people.

I prefer self-checkout due to hating standing in lines and hating people.

Self-checkouts are my saviour. I'm so awkward that I hate going through and making small talk with the cashiers. I also dislike talking and having to say "card please". Plus, there are so many more self-checkout counters here that it's super fast to zip through, scan, tap to pay with my phone and out I gooooooo.

They do leave a lot of room for people to misuse like people scanning expensive things as cheap produce such as potatoes or carrots ovo;;;

As someone who has worked as a cashier, they're pretty decent as an idea. I prefer to use them, personally, but they do need attention fairly often. No warning about running out of change, then they'll just stop working when they run out, ID'ing, etc. And, honestly, at least where I work, if there's not a super long line, a cashier is faster. I just burn myself out sometimes, but if I know the cashier I'll go through their line lol

Our supermarket has both self checkout and normal cashiers specifically for those who don't know how to use self checkout or if it is easier to do at a cashier (eg when buying multiples)

Where I come from we have Self Checkouts and regular ones. Most self-checkouts have an item limit as they are pretty much express lanes.
I use self-checkouts wherever possible because I hate trying to make small talk with strangers and hate it when they give you judging looks about what you're buying.

I do use self checkout and sometimes I LOVE it, mostly when there isn't a huge line for the kiosks. I truly do not understand how people have no idea how to scan things. Did they never watch a cashier do it? I have sometimes left self checkout to go to a lane simply because people are taking way too long to try and check out a few items.

So I tried this out again recently.

Turns out it's MUCH easier if you don't bring your own bags.
Which I always do.
And this was the first time that the person (who came over to help) explained what was making the machine so fussy.
So now I know....