Troubles if you went earn some cash investment is the right thing, I suggest foryou populous it's a gohoice. c od
The national currencies are completed because every nation has fixed their national currency, it is very long term thinking that bitcoin will be a national currency , because a national currency must be legal all over the world so that they can trade in it or they can exchange it for the trade with other countries. while bitcoin is now not legal currency all over the world.
That is the flaw of bitcoin which it isn't being recognized or regulated which means it is nearly impossible for it to be considered to become a national currency since any country do have its own local fiat which they do have the full control of it which means they cant easily replaced it with a decentralized stuff which is bitcoin this is why I do see this thing as an impossible situation to happen and be considered.