If the power goes out none of the fastfood joints will serve you a meal even today, I have seen the meal service wall bots and malfunctions in their mechanical bits seem like they'd be quite easy to fix. Just have one guy in a building and keep a robotics repair contractor on call in the area and so long as he can get there in 30 minutes or less there will be no issue for the majority of people, one of the servos at wendy's goes down? go hundred feet across the street or down the road to KFC or burgerfag. "Internet of everything" is a meme it will be a dead concept before long so networking isn't a new constraint, not a nigger in the building know s how to remedy a networking error on the till as it stands today. Automation is going to surprise you. Robotic parts are subject to economies of scale, repair techs once or twice a week are cheaper than keeping between 2 and 7 niggers in the building 24/7, when the local repairs contractor isn't servicing fast food he can operate an appliance and computer repair shop, upkeep costs on robots are not so high. Automation is already replacing people the limiting factor are trained robotics techs and AI/software techs.