4. We're going to see at least one governments currency collapse soon, with that nation switching to cryptos. That will begin a widespread acceptance of cryptos as legitimate.
there is one thing that I think is impossible and unreasonable. the state will not let its currency be destroyed. because this we can see that the currency can be said as a symbol of a country. if the country does not have its own currency, the country will become weak economy and the state bank is unlikely to let this happen