Crypto currency has a greater future no doubt and we have already seen it since the inseption of Bitcoin in 2009 ehen its value was below a dollar and now above $8,500 as at time of this post.
Though, the prices are not stable, i hope that cryptocurrencies will grow more in the near future.
There are lots of people who are now depending on these currencies. Plus, it will also help our own countries to succeed economically.