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.
And even if you are traveling overseas then there is a limit to carry certain amount of cash and there is always a risk of loosing money or getting stolen or robbed but you can carry any amount of bitcoins in your bitcoin wallet and no one will come to know how higher amount of money you are carrying with you.
actually bitcoin is better than cash because we can save money through bitcoin so that we can avoid so many expenses that not needed in our daily lives. and also through bitcoin we can secure our money to the thief it ever it has. and most of all through bitcoin we can make a alot of income because of the currency changes every day.