This is, to say the least ...

... embarrassing: Walk, don't walk.

The next time Peter comes to the U.S. he should make a point of coming to Philadelphia, where you can walk pretty much to your heart's content (unlike, for instance, Los Angeles). I didn't get a driver's license until quite late in life and quickly discovered I detested driving. So I never drive. And I walk to work (it's 2.2 miles).