

We’ve had flying cars since the 70s, they are called helicopters.
The issue with a flying car for general use, is one of maintenance and safety. If an older car breaks down, it causes a tailback. If a flying car breaks down, it could demolish a school. The higher standards required means higher costs. That means rich people only. The rich use helicopters in exactly that manner.
True, but they weren’t really used much as flying cars till later. I might be wrong on exactly when they moved from military to “rich transport to the race track”, however.