> However, given the inflation South Korea, Iran, Venezuela, and numerous countries in Africa, I find Bitcoin has a real use.

South Korea doesn't belong in this list at all.

> I'm sure many of those citizens do not want to be dependent on a foreign countries central bank for a steady currency.

What makes you so sure about this? Have you surveyed any of them? Given the amount of US dollars in circulation overseas, the evidence would seem to indicate that US currency is actually viewed as a highly desirable alternative to many domestic ones.