Trains allow more people from a more diverse spectrum of socio-economic conditions to work or live in and around an area. If you're a keen isolationist, whethe

Trains allow more people from a more diverse spectrum of socio-economic conditions to work or live in and around an area. If you're a keen isolationist, whether for more or less discriminatory reasons, you almost certainly will vote to avoid useful public transport. Besides, wealthy land owners have drivers on staff. Or don't have to commute to work on a schedule, so an occasional small ferry is good enough (cough... Marin). It's all pretty awful, but not that hard to understand once you look at the more tacit end of public behavior.