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 ?
About 10 years ago, have you ever thought that there will be something called cryptocurrencies in which the people will invest heavily like they do at the moment? I guess the answer is "No". That is the unpredictable behavior of this industry and you can expect the unexpected in almost all the time. There is a higher probability that the cryptocurrencies to grow further and sometimes those may displace the fiat currencies from their current positions in the longer run.