I bet Cambodia is an interesting place to live considering the demographics, religious communities and the ancient architecture. However, based upon my limited knowledge of the country, it doesn't strike me as a place that's ready to adopt crypto in any tangible way unlike say, South Korea. Every little bit helps yet I don't think the average income is very high.
I get what you're saying, but in other areas of tech, developing nations have been able to skip outdated/incumbent tech, and go straight for the cheaper to implement disruptive tech instead. Ain't nobody running copper in Africa.