i think that there's a great deal to do with location, and as referenced here, that interacts with economics - as sharps4590 mentions, it's a lot easier when you can walk out your back door to hunt and shoot. when you grow up in that kind of place, there will automatically be a lot more opportunities and a lot more cultural acceptance and support for those activities.
when hunting/shooting opportunities require more deliberate and elaborate preparations and involve driving distances, economics really begin to enter the equation.
and ted's comment reminds me of an old friend who was involved in scouting for many years. he said that young guys who were keen to advance to eagle rank, needed to be encouraged, and needed to be guided to do so "before the fumes got to them".
gasoline fumes, and perfumes.