There's a lot to operating a physical establishment that machines can't do without reducing the experience. Something as simple as cleaning the tables will not be automated. You need people to provide service in a restaurant, which is why automats generally never take on.

And we already have a model of what it will look like, laundromats. That's what people are aiming for, the patron doing a lot of the work with maybe one person to oversee and provide special services like dry cleaning. I don't think that would be an improvement in food service.