FAA still relies on humans, particularly for super manual areas like takeoff and landing. And ATC is notoriously stressful, overworked and understaffed. We’d ne

FAA still relies on humans, particularly for super manual areas like takeoff and landing. And ATC is notoriously stressful, overworked and understaffed. We’d need a lot more bodies to manage all road traffic. There is a world of difference between the reliability you need for a one off experiment, and the reliability you need for something expected to operate 24/7/365, in all weather from -40C to 40C, in a complex real world environment, and where legal liability gets involved in the case of an incident.