Furthermore, Uber does not train its drivers to be taxi drivers or even inform them what training and insurances are required in their line of work.

They advertise this as a way to get a job but when the drivers are fined for driving unlicensed they absolve themselves by claiming it is the responsibility of the driver.

They should not keep complete confidence in this strategy, as they have been sued by their (ex-)drivers for this and settled out of court. (Which may very well be a more lucrative strategy than doing the actual driving, I don't know about that.)