What would be your advise to most Africans to Utilize Bitcoin.
do what other people in other countries do.
earn bitcoin through different ways like mining bitcoin or mining altcoins, you can earn bitcoin as an individual by offering services, and many other ways.
you can buy bitcoin and use it as a currency.
if you have a business of your own like a sandwich shop, you can start accepting bitcoin and spread the word.
if you are a customer you can ask them to start accepting bitcoin and show them how easy it is and introduce them to bitpay.
I don't think they have the luxury to buy mining equipment let along afford the costs before reaching ROI, though they have plenty of sunlight and heat which can give them near to zero cost electricity.
i don't really understand how sunlight and heat can make then cheap electricity but if that is true then it makes a good investment for a mining farm. and surely there are people with enough money to start a mining farm there although cooling may be a problem.
besides you can always buy a GPU for gaming and start solo (or pool) mining altcoins yourself.
They have unlimited sunlight and a huge desert
Thus they can utilize thermal energy as they wish, yet they don't..instead they make war with each other and the whole continent is left undeveloped.