Cash is better because you can easily use it to buy your needs anywhere in the country/world. You pay cash when you buy street foods, for your children's allowance, to pay for public transportations. People also are accustomed in using cash in majority of their transactions.
Cash is better than bitcoin literally, the world of bitcoin are quite small and cant even supply the demand of the world yet. Cash is more comfortable than bitcoin, we can use cash anywhere, in anything we want to buy. well we hope that the future of bitcoin are brighter.