Sizara42 t1_ir9owxo wrote

I'd guess it's cheaper (combo of time and money) to do a robotic arm instead of trying to retrofit a whole fast food kitchen to adapt to robots instead of humans.

I'm personally more a fan of the robot cat waiter. It can carry three full serving trays full of food and tells you which tray your food is on. It still needs to have a human supervise the guests to make sure they take the right food, but... let's them get big table orders without risk of dropping them.