> Now imagine a Starbucks with touchscreen-and-voice enabled ordering, no visible employees (maybe one employee, nominally a store manager, working the fleet of coffee machines behind the screens, and doing some light sweeping in the restaurant, etc) and a communal co-working space that more or less preserves the current experience, just minus the baristas.

We are already almost there. We have coffee vending machines. We have touch screen soda dispensers. Starbucks could wire in their mobile app to give customers a "redbox" coffee experience if they wanted to. I think it's part of their brand that a barista hand crafts your beverage rather than a machine do it, but who knows what their future direction will be.