World already enters in era of digital systems which cash is still working but now its work is minimizing through digital systems while Bitcoin is having its own importance in many countries ATM and other stuff bringing good use of bitcoin and peoples are happily doing their stuff without any problem while cash is still exist but now its way of work and necessity is going on low level big transactions are working without any hassle on touches without paying high fees.

Even I feel bank notes are now losing their grip but still have enough potential to stay and have things on level for years because of few disadvantages which are never been working with these digital systems even with Bitcoin in many countries its going to be take years for having their existence because they are having not enough technology and development for using things like Bitcoin and other digital hopefully its going to be have enough changes in near future.