Time to do some thought exercise where there is no right or wrong answer. Here is the premise

In a distant future where the technology finally catch up into a flying car technology and it become commercialize and more accessible to the public. What kind of impact to the society that we currently know of upon its release and creation? Would it completely wipes out the land car completely including the land road? What do you think?

I will start.

The most likely to change first would be the traffic law as the current traffic law is strictly to the land road. I would believe that before the flying car is released to the public, there will be a need of moving various kinds traffic items (road sign, stop light, road marks, and etc) airborne, either physically or metaphorically (By this, I mean an equal substitute that has the same function with those). If I were a lawmaker (Probably, will not be a good lawmaker as I know 0 shits on law), I would probably impose the manufacturer to limit the "flying" capability where it can't fly not higher than the height limit, so it won't intrude the plane's traffic

Land roads being slowly phased out and repurposed solely for foot/cycle paths would be a very nice change to society, it seems kinda utopian provided the flying cars aren't making a bunch of noise and polluting

Here is a timeline:

The biggest tech giants announce the revolutionary flying car amidst never before seen record levels of promotion.

Mass production begins and the first adopters get it cheap due to government policies and green rights.

Legacy car makers start a counter campaign as more and more people switch to flying cars but the campaign inevitably fails.

The world sees a sudden spike of Air Traffic Controllers and the FAA establishes the first set of rules regarding fly driving.

Full Self Driving becomes a reality due to air navigation being less complicated. Car accidents plummet.

Sweden, Norway, Iceland are the first nations to succesfully transition to a 100% flying car infrastructure. The rest of the nations soon but surely follow suit.

CO2 emmission plummet by close to 30% worldwide as roads are being changed to green areas.

Flying car adoptions are being halted by governments due to the power grid being overused.

The power grid gets the upgrade and flying car makers resume production.

The price of the flying cars stabilizes. Traditional cars are slowly pushed out of the market as third world countries switch to used flying cars instead.

Years later: The problem of birds being pushed out of their natural air route is now solved. Light pollution remains a problem.

all the cars blocking out the sun, pee-yew

i hope some of those flying cars crash through my bedroom window and crush me when im sleeping

I don't do thought exercises, I exercise thots.

thats deep