Pepe,
I agree with you that there is no such thing as "sense" of direction, but rather applied parts of everyone's ability to perceive and interpret their surroundings. A baby that finally crawls and finds its way into pulling out the pots in the bottom cabinet of the kitchen, or masters its way to the toys in the living room, they Navigated. The prescholer or kindergartner who found their way to the bathroom the first time they were allowed to go by themselves rather than a group, they Navigated, a two-control-points Memory-O to make it back to the classroom.
We just don't point out that skill as navigation (actually I Do), nor do we actively keep honing it for further development in schools and without the use of tools (we should teach navigation when we teach numbers, and hand them a compass and a calculator only when they have mastered map reading and their math facts). NG in MA doing a great job at that, one school at a time, but at events we can definitely help people figure out their learning style and how that can help ease their fears about their own navigation skills.
Rant over.
Andrea