If you hear them taking about currency note and digital currency that's how currency and digital has to differentiated by note which is tangible and digital which intangible..in simplicity it is a currency that you can't touch that's why its called digital currency because its untangible
I hope it helps you understand that its not commodity
We definitely accept Bitcoin Asia currency because I am saying this it is also one of the great way to make our economy to the great level in future so the way of earning Bitcoin and using Bitcoin as a normal currency will always be positive for all the people but not now it can definitely shortly get a Assurance from the people in future day.