I think you're conflating cash meaning the physical currency and cash meaning the liquid asset here? A cashless society is about the former, and as far as I kn

I think you're conflating cash meaning the physical currency and cash meaning the liquid asset here? A cashless society is about the former, and as far as I know, the 10% limit is about the latter? (EDIT: I believe in some systems the banks do technically have physical currency in the form of special high value notes, but they're not really cash in any practical sense)