Using cars to deliver food pays very little, is dangerous (old guy with shotgun shoots your brains if you go to the wrong house), and is extremely bad for the environment. Current delivery workers could switch to a safer job with better pay and not damage the environment as much. Or we can implement UBI. Just a thought.

Edit: I would also like to point out a robot’s electric bill for a trip is much cheaper when compared to a gas or even an electric car. Ideally, the savings would be passed along to the customer.