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?
In fact, there are many reasons why mass use of cryptocurrencies as a means of payment is limited. I believe that most people are simply not ready for this - they do not understand the possibilities and advantages of modern cryptocurrencies.