Well, there are digital currencies being used all around. Let me make this comparison. In my country we engage in mobile money/banking. All you need is to convert your fiat into digit and you can make payments anywhere from any distance. Its is no different from crypto except that the former is centralized and non volatile. Its all about making the world know how the crypto world works. Explaining to the algorithms behind cryptocurrencies and I think with this, the world will be ready enough.