Remittance is something cryptocurrencies have tried many times to do, and generally failed completely at. To do remittances, you have to have money flowing in

Remittance is something cryptocurrencies have tried many times to do, and generally failed completely at. To do remittances, you have to have money flowing in both directions, or you will run out of local currency. Cryptocurrencies do not have that. There are not an equal number of people in foreign countries that want to buy cryptocurrencies as there are that want to send money and convert it to local currencies. The solution for this is, ultimately, arbitrage using the traditional financial channels. And at that point, you are paying the costs for those channels, plus the costs of the extra middlemen you have added on top of them.