Digital currency is basically a threat to the old conventional paper money, as the world is heading toward the cashless society then paper money will surely feels its effect.
Indeed, the bitcoin has a good future because its digital with the paper money this is most likely the opposite it has a bad future because everything is gonna be digital.
I think the paper money will soon or later disappear.
I doubt that paper money will disappear anytime soon, there are too many people that would be in opposition of taking paper money out of the economy. There is a good feeling when you have cash in your hand as well, so I wouldn't want to see paper money phased out either.
not for the near future but for the future might have happened many people who telkah digital era predict will happen in the future. we can not dodge it all we will deal with it. so prepare yourself