The problem isn't in the availability of technology but the (lack of) problem it solves. People can barely drive on roads safely and there are infinitely more r

The problem isn't in the availability of technology but the (lack of) problem it solves. People can barely drive on roads safely and there are infinitely more regulations and skills required for flying, even with the relative little amount of air traffic. If anything, autonomous vehicles could be precursor for individual aerial transport.