I think if people lose faith in a currency they simply switch to another.Bitcoin is the next viable option in case of finacial crisis.On the other hand, properly educating people about the benefits of bitcoin would foster credibility.Personally bitcoin still have a couple of advantage over fiat currency.  It isn't controlled by any central authority.  Second bitcoin can be easily  bought and sold in bitcoin exchange sites and localbitcoin.com.Transactions are done very quickly without a third party...