About the closest you get to something like this in the US is things like TransitChek, where employers who sign up can give their employees transit purchases with pre-tax dollars. This obviously helps lower income folks more than it does higher income folks, but it's not good enough.
> That sort of public welfare strategy is beginning to work in South
> Africa in the case of water, where a recent constitutional lawsuit
> gave great impetus to free basic water (50 liters per person per day)
> and much higher charges for consumption in excess of 200 liters per
> person per day.
There are much more significant programs for basic utilities -- water, gas/electric, phone -- in the US than for transit. I think it's a clearer case to be made for politicians to soak a monopoly to benefit the poor than for the middle class.
/jordan