Bitcoin is always better than cash.For our bitcoin earnings,we are not accountable to government and we need not have to pay taxes unless it is legalized in the particular country.With bitcoin,we could easily send huge amounts of money with very low fee at high speed.With bitcoin,our money value increases,but with cash,our money just remains idle.
You can simply say that it is true. Bitcoin is better than cash because of the price and it is accepted in other country. Bitcoin doesn't have exact value and there are time that it will increase its price. Lastly, I think cash is better than bitcoin because you can used it in all offline and online store but I will prefer to used bitcoin than cash.