[intended]

Automation is coming anyway. A kiosk costs many many magnitudes lower than even an unpaid human. The unpaid human still has to go to the loo.

This is not an argument to keeping people underpaid.

[bluefirebrand]

Kiosks break down requiring service calls. They need software teams to keep them updated, and a not-insignificant portion of the population still just refuse to engage with them. That's why almost all of the ones you see around in stores have attendants still.