personally i think bitcoin is an assets,when ever bitcoin is a currency, but bitcoin currency is very strong currency so we can say bitcoin is a currency and big an asset.
It self opinion, bitcoin is a decentralized platform or currency which means over single individual has right and full control over it investment. What am trying to say here is that bitcoin can be used for both asset or currency it all depend on it holder. because bitcoin as an asset means buying bitcoin and store it for long term while bitcoin as a currency is process where by bitcoin is been used as a means of payment just like local currency. so i don't think anything is wrong if bitcoin is classify as an asset or currency.