Comment by seanp2k2

  once people are okay with sharing seats in a van

That's going to be a long wait in the US! People would rather pay 10x to sit in their own luxury bubble in traffic and have everyone see how fancy their luxury bubble is vs. /gasp/ sharing it with others. Most people here don't want mass transit, they want their big truck / SUV to haul 1-4 people ("it's safer for my kid").