Bitcoin was supposed to be used as a currency, not only a form of investment. However, it's been more successful as a form of investment, a "speculative asset". 
Do you guys think that this can change in the long term ? 
if bitcoin is used as currency in a country maybe it could happen, but it will be difficult. Why.?
because it will disrupt the development of a country based on the currency of each country. if bitcoin so currency no longer rich country and poor country all the same. In my opinion.