Well, I used to think that way too until I learnt more about the project NASA is working on, it makes navigating one of these things almost fool proof, and hopefully they will have a stricter testing methods (even the new, easier, piloting license would be a good idea).
The Highway in the Sky idea technology will certainly improve the safety of existing aeronautics. But flying cars? Not until we invent quieter and more efficient lift technologies. You can't exactly build a floating sound wall, especially if you have people wanting to fly in the sub-400 ft. zone to avoid FAA scrutiny.
Living in Florida, (THE retirement state) I am frightened to get on the road with some of these people. I cant immagine having to go from worying about them hitting my parked car in a parking lot, to worrying about them comming through my 2nd story window! hahaha!
I would love to be optomistic here, and say it will come to pass soon, but I have to agree with the concensus in this thread. The noise is certainly one thing. The other is the sheer wind force generated to lift the thing off the ground. A single pebble on a sidewalk or in the street turns into a projectile durring takeoff or landing. Not to mention all the dirt and debris that will be part of it as well....
For now I'll stick to my Cessna 172 and landing and taking off at a designated airport