I'm sure that the cryptocurrency is the currency of the future. Now the cryptocurrency is still in its development stage. It is clear that it is not yet stable. Many retailers do not trust bitcoin. But the world does not stand still. Everything changes and develops. In principle, some countries are already taking bitcoin as payment for services. For example, Hungary - bitcoin pay for a taxi, in Dubai - in a cafe and for schooling. Instability can always be in everything, but development can not be stopped.