Oh, I don't think it will work in the US (at least not initially). Americans are accustomed to a certain level of service, in part because of cheap labor. I remember standing behind an American family at McDonald's and their order was just on another level, very specific. Nothing wrong with that, they are getting their money's worth, just different expectations.

We've had automated ordering at local chains in Sweden for 10 years, both in store and on your phone [0]. And more recently also at McDonald's. But you're expected to do a lot of things yourself here. This goes back at least to the '70s with the explicit idea to increase wages and production [1].

[0] https://www.youtube.com/watch?v=-FyPqoT1yp4&t=60s [1] https://en.wikipedia.org/wiki/Rehn%E2%80%93Meidner_model