Because? Really? Because someone has to buy a car? I think your feelings are in the way of your cognitive ability.
>of low-income people moving to common destinations I'm sure there are plenty of low-income people moving to the suburbs/rural areas because they are being priced out of high density centers.
Lets not forget, 5% of the population uses the bus, that's including major urban centers like NYC. Nationally, nobody uses the bus, its a joke throw back to a time before cars. Fuck buses.