At best, they will earn half the wages in this “booming” industry.
The wages are similar. In most of Europe, like the east coast, public transport and bicycles are far more efficient than cars.
That won’t work for most of the USA, so you can’t compare the two
Depends - a guy in the neighborhood has a 3-wheel recumbent bike from Germany. No electric motor and it cost him $18,000. My first 4 new cars didn’t add up to that.