Most kids are now bussed. It's important for planners because its about finances. In Mike Davis' talk last week, he talked about Latin and Asian migration to the city. They will soon be a major block of voters. They have different needs.
Designers design the physical.
Eden Prairie will not be very flexible for future changing needs. An example is in Newton. They thought the large houses could be made into smaller units, but homeowners rejected it. It makes suburbs very inflexible and suburban owners don't want it. The result is sprawl.