>>2614452correct me if I'm wrong but those cities have been built with cars in mind first, people second aswell. If I have to dodge cars all the time and enjoy the view of concrete parking lots everywhere I go I would think twice of going by foot or bike too.
As a european I might be a bit spoiled when it comes to old, car free areas but once you experience that level of freedom of movement you can't help yourself but pity the americans and their parkinglot "cities"