This thing came up to my mind suddenly. As I know a currency is a transaction medium that majority of the people agree to use to exchange their items with them. If it is the case, if majority refused to use crypto currencies, what will be the consequences may occur ?
I think that nothing critical will happen, most likely because of the lack of demand for the crypto currency, the price for it will greatly decrease.
And how it will affect to the ICOs ?
If cryptocurrencies will not be in demand, then ICO projects will be very difficult to raise money, since there will be no hamsters on the market.