Why doesn't the US have high speed rail?
Why do so many Americans want guns to defend themselves?
Why are the roads not as nice?
Why do Americans drive everywhere?
Why are Americans less well educated?
Why are drugs such a problem?
Why are police spread so thin?
Why do state laws vary so much?
Why doesn't the US enact X policy on the federal level?
Why are so many Americans racist?
Why can't american cities just do X?
Etc.

The US is very large and it's cities are really spread out.

Your welcome.