There are many differences of bitcoin and real money.. bitcoin you can use it online as alternative real money you can buy anytime there.. in bitcoins you should have too because many other will exchange it fast and instanly in our place.
I agree to you that there are many differences about bitcoin and real money and that is, bitcoin can use online as alternative but in the real money you can buy anytime, anywhere and what you want to buy. The difference on bitcoin and real money is, bitcoin is a digital currency that you can use only online but also can be real money but real money is only a currency which also you can turn to bitcoin but that's so much money to turn it in bitcoin.