But people don't "drive everywhere".Ah, the usual Treasury viewpoint. Because of course, public transport is a liability whose subsidy must be minimised at all cost - rather than an asset which can deliver benefits to the economy and society at large.
Unless and until public transport is a plausible option, people will continue to drive everywhere, imposing noise, traffic and pollution on society as they go.
Most people mix their travel choices based on (yes) cost but also convenience, journey time, the circumstances of the journey and a whole range of other considerations.