jonashnk's comments

Citizens are paying taxes anyways - in the city/province of their residency. So for the citizen - changing the residency doesn't cost anything and you get free public transport.

So this is a net positive for the city (but not for the country as a whole I guess).

In Tallinn (Estonia) free public transport was launched on the municipality level. What's interesting, is that despite criticism that this is too expensive for the city - free transportation has actually turned out to be profitable.

This is because only residents of the city can use public transport for free. So thousands of people, who have lived there already, but were not registered as residents, now declared their residency to access free public transport—and started paying their taxes there too.