Honestly, I have never considered bitcoin as a currency and I also do not believe that bitcoin can become a popular currency/payment method in the future as many people say. Simply because there are too many barriers preventing that from happening, barriers not only from governments but also from bitcoin itself. Slow speeds, high transaction fees, and unstable prices are reasons why it is not suitable to become a popular payment method. Until these issues are resolved, don't expect people to use it for payments because when it comes to means of payment, what people care about is speed and cheap fees. They don't need a decentralized currency in this case.