What is future of cryptocurrencies

Since many countries have banned the existing cryptocurrencies but still many are accepting them. I heard about South Korea that purchased armed against cryptocurrencies.
It has now become a fact that cryptocurrencis now will not be denied.
In other words that cryptocurrencis future is to come. Like money transformed from barter system to coins to currency notes and now to digital currency. So, truth is that future of cryptocurrencies is bright
Like social media pioneers failed to promote but Facebook and Twitter grasped the attention of whole world. In the same way cryptocurrencis’ pioneers seem to be couldn’t create a favourable environment for the future of cryptocurrencies but many yet have to come who they will totally change the world.