So you used people's walking pace to determine that most native-born people do not take leisurely walks? ;)
I am not offended, that sentence rubbed me the wrong way. I agree that most certainly culture affects our activities, even to the point of how we do seemingly simple things. But the culture you have and the place where you are born are very different things. Ask anyone who is born into a displaced family that preserves their original culture.
I am an American-born Chinese person that takes walks. When you see me and my wife strolling, at that moment, you are seeing my culture (that enjoys "san-bu") not my birth place.
As far as I know the FBI didn't catch Eichmann in Argentina at all--the Mossad did.
There are studies (see Robert Levine, "Geography of Time") that use normal walking pace as a very characteristic indicator of geographic origin.
The FBI caught Adolf Eichmann in Argentina partly because they noticed his dissonant walking pace :)
Venkat