Oh I see, the problem is actually that you don't understand what the meaning of "being backed by" is.. Tell me, can I cash in my 1btc or 1gram of gold and get utility as ideal medium of exchange out of them? And how does utility as ideal medium of exchange look like?
valued properties != backing, mkay?
Yes, you can cash them, but not in the bank. You can try on SR, the OTC market or places like that (until a "better coin" takes off)