Note, that's not a put down on said people. I think it's a shame such situations exist. But, if you can't afford to pay for insurance/gas/maintenance, then you can't afford the vehicle.
But, regarding flying cars: I absolutely do not want more people operating airborne spinny death machines capable of destroying considering we've already established many people don't/can't perform basic maintenance on a much simpler and safer mode of transportation. It wouldn't go well.