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.
For me, the difference between bitcoin and eeal money is that bitcoin is digital or can be access through internet. And bitcoin is untouchable while real money is where you can touch. But this two is a money that can buy you things that you want.