The appeal of the flying car is imaginary: what people immediately fantasize about is rolling out of their driveway, finding a clear stretch of road, and taking off.
Make that one hour commute a lovely fifteen minute flight!
But that can't actually happen. The month of driving practice needed to get a license becomes a year or more of pilot school. The damage inflicted by motor vehicle accidents is already horrendous enough without adding a thousand meters of altitude into the equation.