Approx 19.3% of Americans live in rural areas, and a higher proportion of rural residents are in poverty. Therefore, measures to discourage car use are likely to disproportionally adversely impact some of the poorest in society. Unless those measures somehow completely avoid affecting rural populations.

I’d support city only measures like a city income tax to fund public transportation and conversion of stroads to pedestrian friendly streets. But what is likely to happen are general taxations on car users such as fuel duty and onerous regulations which push up the cost of car ownership.

https://en.wikipedia.org/wiki/Rural_areas_in_the_United_Stat...