I'd really think crypto currency has the potential to streamline exchanges and transactions between countries since the value of crypto currency in one country is almost the same as in another. This currency won't be manipulated by only one country for their gain. But first, crypto currency must stablize in order to be adopted.
The existing of cryptocurrency can help many countries to expand their business around the world and with cryptocurrency, the transaction can across to many places and can complete less than a day. So, if there are any companies try to use cryptocurrency for their transaction, then the other companies will follow. But unfortunately, until now, the crypto cannot be stabilized, and the price will always change, and it depends on what the market situations and this is a problem that needs to be solved. Maybe there is one coin that can stabilize and can be used to connect between the crypto and the business itself.