Bitcoin lost its feature as a currency because of its high volatility and the possibilities of making profit. Maybe it will be more used as currency if the price is (somehow) more stable and more stores accepts Bitcoin in the future.
Yeah that's true it's difficult for bitcoin to go mainstream as the price can change from to time. To add the confirmation and transaction fee are also a problem that need to address by the developer itself. Maybe this will only serve as a digital asset rather than a currency.