This struggle between currencies will always be around us, bitcoin is something new and many old conservative people will not accept all this. New generations are coming, bitcoin need to survive and maybe for 20, 30 years can stand against fiat.
I have to agree cryptocurrencies need more time for people to adopt slowly over time. Fiat only advantage is everybody using it, but once this dominance ends people should preffer cryptocurrency public ledgers over secretly mantained fiat ledgers. In future there will be attempts from politics to force everybody to use the fiat again, because their debt based fiat pyramid can collapse so fast if people start ignore using fiat on a larger scale.
Public ledger is much better than secretly mantained ledger, because without public control there is so much room for misusing the power to have control over the ledger and creation of new fiat tokens in any quantity out of nothing - and you have actually work for such fiat tokens?