I think if we got past the "vaginas are dirty smelly places unless you use product X to make it smell like flowers," you'd probably actually find less worry about pubic hair. The general line of reasoning I've seen for that is "Vagina is smelly - hair keeps smells - no hair equals clean."

If we can get the former taken out of the equation, or at least pounded in that the scent of a healthy vagina is a good thing, you'd probably find less concern about hair.