Real money is accessible everywhere but bitcoin requires internet connectivity to use and its accessibility is limited and huge population unaware about bitcoin and crypto currencies. You can buy your everyday needs through cash any time but that is not possible through bitcoin.
of course, bitcoin isn't at all fit for small expenses...these are two different types of currency and they perform different functions
cause bitcoin as on just how our time age passed by this is how or when this kind of digital currency are risen and been adopt by many people and now compared on the fiat currency , so difference between for this two currency is not a being deal isnt , why the government dont like it simply because they cant control it because this was a decentralized.
There is no difference in bitcoin and real money , bitcoin is a real money. but if you are talking about the paper money and bitcoin then there is lot of difference in them. the bitcoin is more value than paper money, bitcoin has high rising rate in its value in the market while the paper money is consider as a fix value. the bitcoin is high security while the the paper money has not. bitcoin is a real money and also a strong crypto currency.