The problem with bitcoin in this real world is its acceptance world wide as bitcoin is a decentralised crypto currency and thus there is no proper authentic regulating body over bitcoin and this thing is use by many social defaulters as since bitcoin transaction does not involve any third party seizure even so many people use it in selling drugs, explosives, money laundering and many more and this is the reason why most of people and countries are in against of bitcoin and the probable solution to the problem is the legalisation of bitcoin world wide.