i think bitcoin is a currency and at the same time an assets in the sense that due to the volatile nature of bitcoin it tend to generate interest as the market keep growing, and again when you hold bitcoin for a long time it become an assets which has the ability to double or even triple the amount you invested on it and the government see bitcoin as an asset and not generally bitcoin is an asset. I see bitcoin to be a currency and not merely a store of something. We shouldn't get confused with this term. One can made anything at all an asset