i think It’s better by ways of convenience. I am pro-Bitcoin of course but it’s not convenient when I use public commute or by food from the street especially that Bitcoin is still not acknowledged in my country. And living in a third world country with the slowest and most expensive Internet connection, you can see why cash is preferable than bitcoin and Bitcoin use for online transaction and the price is continue to increase so you can make profit if you have bitcoin, Cash is for offline transaction and if you have cash the value is still that and the price will not increase.