Sooner or later mass adoption will occur due to the proof and guarantee that the blockchain in general is displaying.
The people who uses this system will be the best basis for mass adoptions to take place,
success start with those true believers.
However, the major obstacle at the moment at the present time is the regulation of banking institutions and governments around the world.
They don't see the benefits yet, and also, they are not getting favor that's why they
are still in denial to adopt the system.
Thus, the bureaucratic system of laws in the world is the primary impediment today for cryptocurrencies.
No question but in due time it will succeed and implementations and adoptions will
happen along the way.