The problem is that BitCoin is treated in a speculative manor which is generally not a good thing for currencies. Currencies are also traded but the fluctuations are generally small - when they start to get big (think Argentina) the country has a problem. An please don't say Dr BitCoin's magic elixir will fix all that because it has already demonstrated it can be forked (creating new bitcoin out of nothing) and lose value in an inflationary period. Both things touted as reasons to support it. Currencies serve a purpose - primarily to allow the exchange of goods and services. As far as I know I cannot purchase much of either with BitCoin without first converting to $$$. So it is not really a currency now or likely ever will be.