It's been discussed here before. The reality is that a) most fast-food chains have already automated as much as they can before b) the robots that can do the re

It's been discussed here before. The reality is that a) most fast-food chains have already automated as much as they can before b) the robots that can do the rest of the work are complicated, are single points of failure, they're single-tasked, and need more maintenance and food-safety cleaning than a human. If a human fails or doesn't show up for work, it can be quickly replaced. Not so for the robot.