It will take some more time before btc is recognized a real currency. As of now, it's just a store of value, which is totally fine. I don't mind btc being recognized as only a store or value..just look at gold.
Bitcoin will really become one of our world currencies but it will take time to wait. Aside from currency the function of bitcoin can be investment. But, instead of using investment or asset many people use it as currency because of fast transactions. If we want to happen it we should support it.