Are flying cars realistic?

Flying cars was the montra, but I recently gave it a reasonable thinking over and concluded that flying cars is a sort of crazy idea even if a brand new shiny fleet was on sale at your local Honda dealer. The vehicles if used en masse would likely start crashing more frequently since they would be piloted by the average citizen. Where does a flying car crash? It doesn’t crash out on a busy street, or in a parking lot, it crashes on your house! While you’re sleeping!