The global economy is nearly 80 trillion USD per year. Payments using any type of cryptocurrency as a medium of payment is a tiny fraction of this total.
What are some of the reasons preventing cryptocurrency from being more successful as a medium of payment?
It is too volatile. Merchants would not want to accept crypto because the currency itself is not stable and they would much rather opt for fiat. However, mass adoption of cryptocurrencies can stabilize the value of cryptocurrencies to an extent. X-Infinity is an ICO that actually has the power to promote mass adoption of cryptocurrencies. X-Infinity aims to create a unified cryptocurrency wallet that allows consumers and merchants the ability to transact as easily using ANY blockchain asset as a currency. Check it out
http://www.xinfinity.io