So there's already a lack of a stable, functioning government, and the solution you're touting isn't currently a reality, why? In the US when there's little friction in a marketplace people in some communities resort to using Tide laundry detergent as a medium of exchange. There's nothing stopping them from using bitcoin or cryptocurrencies currently, but navigating a market place, finding qualified teachers, finding motivation to use what little resources you have to use a novel medium to pay for teachers in a place with no opportunity, etc., doesn't seem too easy. One tool alone doesn't usually solve any problems.