"It's 2021 where are the flying cars"

They were invented ages ago, they're called helicopters and they cost a fortune to build, run, and maintain, and you need a skilled aviator to use them safely, and obviously air traffic clearance in many places so you don't fuck up a flight path for a commercial airliner. They're lethally dangerous to park so they need special open spaces and they don't generally taxi away from those, so it's one at a time.
Basically you're talking shite is what I'm saying.