Will we ever have flying cars?
The Robinson R22 was kicked around as a helicopter that anyone could afford, like a second vehicle.
First, cars and aircraft do 2 totally different jobs.
Secondly, the general public looks at price as their primary selection criteria. The whole purpose of advertising is to try and defeat that, but that's another topic altogether.The public will NOT pay for the maintenance required to keep an aircraft airworthy - it would cost too much. How many people do you know who own (either entirely or a share) an aircraft ?
Anyone involved in general aviation does it because they have a spark for it and it's a major expense in their lives, just like diving, parachuting, travelling, etc.
Then there's the reduced manufacturing standards necessary to get ANY consumer product down to a realistic price point: company X has a car they're designing. Testing has shown that a particular part fails at an unacceptable rate.
In a car, a designer/engineer can add more metal so it doesn't break. In an aircraft, the thing still has to fly so adding more weight isn't an option. That requires redesign of the component and further testing to see what else the redesign has effected. This also means that every component on that vehicle must be made to the same standards (yes, even the radio and cigarette lighter). It can certainly be done, but are enough people going to spend 500 grand on a subcompact to make the design process feasible ? Then spend another 10k for the license to operate it ? Then there's fuel and insurance and a whole heap of other things that would need to be paid for.
There is one that you can drive home from the airport called the Terrafugia, though it's not yet in production and requires both FAA (max weight) and NHTSA (polycarb windows, no airbags, no stability control/ABS) exemptions which need to be renewed as they expire.