because bitcoin system was so protective and people in all country starting investment everyday, it makes bitcoin can survive from extinct
As of today I see bitcoin as an investment vehicle and not used as a currency. In the near future, since we are moving into the digital world and advanced technologies, when bitcoin's value becomes stable and less volatile then that's the perfect time for most of us to use it as an official currency that can be adopted by both public and private business sectors. We just have to wait what the future may bring with this awesome technology.