I work in a plastic's factory that's largely automated. The machines go down on a daily basis because their programming makes infentesimal mistakes that slowly add up the longer they run. They can identify mistakes, but they can't correct them themselves. Also, repair can take up to two hours depending on what you have to do. Plus, cranes are usually needed to move heavier machinery that needs to be replaced.
It seems like a good idea in theory, but it's not, for a fast food place. They'd loose too many customers to repair issues.
But guess what? at the end the day robots are still being programmed by you guess it.... humans, If the person put in the wrong software it come mean a disaster, say for example you want a warm cheese burger but yet the robot give you the robot a cold burger all because some person put in the wrong software the makes robot to do Cold burger. we still have a long way to go.