The answer here is what we have in drones. Drones can stay perfectly still in the air now. A flying car or personal "jet pack" would be the same. The usable sys

The answer here is what we have in drones. Drones can stay perfectly still in the air now. A flying car or personal "jet pack" would be the same. The usable system would provide all the stabilization of a drone and your controls would be just that of a car, with a separate setting for altitude. And just like cars, you wouldn't be flying it randomly, we'd have to build "lanes" at different heights, etc. You don't drive your car randomly through buildings. In fact, connecting to a network and having it fly for you would be the most likely scenario. Not to say that there wouldn't be "free flight" parks around.