I could see this as a way to make fun collage photos of yourself (i.e. you in multiple different poses in a wide shot of you in front of some cool mural/object)
But I feel like this then takes the meaning out of being there in the photo when you directly edit your entire presence into the photo.
I can understand tweaking eyes to remove red-eye, or replacing the background with a slightly better lit one from a different photo in the same shot, because that still captures the original essence of the shot, but when half the people in a photo quite literally weren’t even next to the others, it doesn’t feel like one side of the photo recognizes the presence of the other side, because they weren’t really there.
I prefer using the self checkout, I don’t consider it work, because I also consider it work to mentally deal with meaningless small talk, and to deal with waiting in line for ten minutes when I’m buying just a few items.
You might feel like it’s work for you, and that’s fine. You can then use the staffed checkout lanes, which are explicitly there for anyone who dislikes doing self checkout.
The problem isn’t doing “work” by using self checkouts, the problem is capitalist cost-cutting, which would be done with or without self checkout machines.