>I've been to-and-fro across much of North America for much of my life. I have never encountered a situation where it was especially challenging to orient to the cardinal directions...
This is one thing I always find quite odd on American TV / Films.People [eg. police pursuing someone] will inevtiably say something like "He's turned north onto 21st St." or "He's heading east on 12th street". I always wonder how they know the compass direction. I don't think many people in Britain would express directions like this, using compass points, or even know which direction was which.
Do US streets have the cardinal directions on the roadsigns, or are you all issued with built-in compasses at birth?