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.
Well I mean people won't order from a 100% automated fast food shop. The customers expect human hands to touch and labour over the food, even if it's financially unviable.
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.