It depends on the place. But generally speaking if there are tickets to be paid (that is, if riding the bus isn't completely free to the rider) you can assume t

It depends on the place. But generally speaking if there are tickets to be paid (that is, if riding the bus isn't completely free to the rider) you can assume the operation is at least partially funded by the people that use the service. Which statistically tend to be poorer than people that ride private cars