Bitcoin as proposed by its maker Satoshi Nakamoto is something other than what's expected from what is truly on the situation today, it is probably utilized as computerized cash as installment for merchandise and ventures. In any case, it swung to be a speculation thus its market cost is so costly now as a result of the expanding interest of the general population over the globe.
I think Dealing with it, bitcoin is not enough to use (especially in 3rd world countries) you can live with bitcoin only. Currently we still need money to pay most of the goods.
Because although no matter how bullish you are in bitcoin, some people still need fiat; perhaps to pay bills, to buy random items, to pay for some kind of emergency, because they lack fiat, the stuff.