It wouldn't surprise me if the programming, repairing, and regular maintenance of automated burger flippers cost more than a fleet of humans (that are versatile enough to also be able to take orders and clean tables.)
It's a very common mistake to reach for automation because it makes things locally more efficient but forget all the things it makes less flexible and thus less efficient.
And don't forget that governments will subsidize your low wage employees with things like food stamps and WIC but they won't subsidize the capital cost and ongoing maintenance of your robots.
It's a very common mistake to reach for automation because it makes things locally more efficient but forget all the things it makes less flexible and thus less efficient.