In your restaurant experiment, are we allowed to use robots to make and sell food to the customer? Or will they walk out?
That’ll put an end to “I can make myself a Reuben with store bought stuff for $3!!!, $13 at the deli is goddamned capitalist pig ripoff”
It is good to know the failure modes of your AI.
Also the cost to develop, deploy, and maintain your robots.
BTW, most fast food does use robots as far as possible; these are highly automated processes. The robot might not look like you'd expect, but that aint a problem with the robot.