Hate to say this but freedom from fiat money is not possible (unless your paying in gold or barter only). both bitcoin and real currency derive their value from a 'virtual' source. for currency the backing comes from the government. that's why currency notes have a 'i promise to pay the bearer...' part signed by the appropriate official.
For bitcoin it comes from it's perceived value to the individual. this value is either in the form of anonymity, country neutral currency or future value on an exchange (i.e. it's value in fiat currency).