Should public transportation be free?

[GUBU]

One thing to keep in mind is that building and maintaining roads for cars costs a lot of money.

Concrete is also a significant source of CO2 emissions.  Free market capitalism has had over 40 years to solve this problem, and it appears that it just won't.  Both Republicans & Democrats are going to carry on until the balloon pops, and when half of modern-day Florida is part of the Atlantic and Gulf of Mexico, people will complain.

Capitalism is by its very natue a system with a short term horizon and one that ignores any external costs.

As I am fond of saying, it is the best economic system apart from all the others.