If some of the cities in America became more bike-friendly, it would help our neighborhoods (more people being in contact with each other, instead of consumed with their little world inside their car) and I think it would have a lot of other good effects, too. Where I live, many people are extremely poor. Often their car is an ego thing. If somehow, the need to have a car was changed, it seems that it might help America's poverty-stricken neighborhoods. Having a more bike-friendly system would probably also help the obesity problem!