This is a tough field to enter. Cause you know the very first mechanical malfunction will destroy the company.
Just imagine the headlines of mothers and their children falling out of the sky onto highway traffic . It would be the death of the entire industry. I'm picturing something very similar to how we don't use airships or zeplins because of the Hindenburg traumatizing the world on how dangerous they are.
Helicopters are exponentially more dangerous than fixed wing aircraft, and what these tech companies are trying to do is give them to regular people without any training. Even worse , they're putting them on autopilot so now you have to worry about both software errors and mechanical errors. And don't forget about the wildlife because these aren't robust enough to keep flying after a seagull rams into the rotors.