You can always tell the people who have had jobs where they learned how to run a cash register versus the ones who haven't.

I love self checkout. If there's no line at either the cashier or the self checkout, I'll take the self checkout every time. It's way faster, I don't have to make chit chat, and I don't get cashiers trying to upsell me or ask me for donations or whatever else.

Way better experience for me. I don't care if I'm saving the company money by doing the labor for them. It's still a better experience for me so who cares.