We know that bitcoin is more useful and one of the best currency in the world. I agree with you bitcoin is better than cash. It is more secure ans safest currency. If we hold bitcoin in future we must get enough money. Because the price of bitcoin is increasing day by day.
Cash is not able to provide you any kind of profit no matter for how long you hold it or wherever you hide it whereas bitcoin has great ability to make you rich just in few months simply by holding it in your wallet safely. Cash is now becoming old method of feeling rich whereas bitcoin is the latest trend and the future of the world economy. I am not in favor of using cash because it is not safe to take much cash with you.