While the latter are usually created and issued by central bank and is legal tender, digital assets, on the other hand, are not “legal tender, and are not backed by any government or public authority” as the Basel Committee on Banking Supervision clearly puts it.
The FATF recommends countries to consider virtual assets as “property,” “proceeds,” “funds”, “funds or other assets,” or other “corresponding value”.”  3. The need to regulate Digital Assets History has shown that regulatory gaps or vacuum have contributed to perpetuate fraud, led to financial crisis and undermined confidence in the financial services sector, amongst others.