Bitcoin cash is great currency. Why? Because idea of bitcoin is that it can be used to pay coffee or foods. But because there is 15 min waiting in bitcoin it is not very good for that. Botcoin cash is great for this kind of fast buying. But I don't think that soo everyone is using cryptocurrencies because goverment will tax it someday because they dont like that there is currency that they can control. I think that bitcoin is new version of paypal and not everyone is using paypal and bitcoin have same destination.