[update] Consider the consequences, by Shey and Raphinha

If the cities provide free public transportation, there will be fewer cars on the road and less pollution.
Shey’s opinion:
It depends. If the public transportation got better maybe people wouldn’t wish to have a car, because it’ll be cheaper and more comfortable to go from a place to other. However there will be advertisements about cars, they’ll show to people how comfortable, successful would be keep having a car, so the fleet car is be able to keep increasing.
Raphinha’s opinion:
I agree with the main sentence and disagree with Shey. I think if public transportation was good enough to provide to population an efficient transportation, there would be fewer cars on the streets, because it’d be cheaper and faster go from a place to other by bus, for that way the traffic would be smaller than it use to be. We know the big number of cars ion streets brings about a lot of traffic , so with fewer cars on the streets the traffic would be smaller, because more and more people would be in the buses rather than in the cars. So would be more comfortable to travel by bus from a certain point of view.
Besides there wolud have less polution, because with fewer cars on the streets there would be less emission of  gas.
So go by bus!!!