In central Africa country like Kenya, Zimbabwe etc
With the help of Bitcoin they can buy anything from Internet.
Ah man, in those countries they don't even have water and electricity, and a huge percent of families live for 1 (one!!) dollar per day (not to say about the limited access to Internet).
I don't think these poor people dream about bying something on the Web.
In order to have financially reliable population these governments should firstly improve living standards, wipe out poverty - and then enjoy all the benefits of Bitcoin.
Naturally! They care where to get some water and clean clothes, food, and electricity. They have not heard about the Internet (many of these people). Thus, I think that BTC in developing counties will be not yet used.