[Heliosmaster]

But that's exactly one of the problems: for example, the fact that current taxi drivers paid money for their license, is not written in any law: licenses are limited and the only way to become a driver is to buy one from somebody else who is retiring. Unions are lobbying very hard, soliciting drivers to evade taxes and taking a cut.

There was recently a very controversial reportage about this (in italian): http://www.iene.mediaset.it/puntate/2017/03/26/maisano-quell...

There's a lot of shady stuff even if they seem to be following the law...