I’m an introvert and I prefer self-checkout because I never have to pause my podcast. With regular check-out I have to pause it for a few minutes while they’re scanning my stuff in case they have a question like “do you need bags? do you have a loyalty card?” Other people might enjoy those interactions, or might want to make small-talk with the cashier. I just want to keep listening to the podcast.

I’m willing to do a bit more work and spend a bit more time if I don’t have to stand there being attentive to the cashier.