Bitcoin is really a true currency/money. Why? because once you have it you can convert into a real money according to country you belong. And the banks also accepting bitcoin whether you are in different places of the world. In that case it shows how bitcoin is very popular in online business.
In fact, bitcoin is digital money that you can use in different transaction in online like paying bills, shopping in online market and more. In addition to that, you can also convert your bitcoin into fiat or real money that you can use in offline store. I guess some commercial establishments already accept the bitcoin as a payment of their costumer so that I think bitcoin is money.
Bitcoin is not just money. If he were just money, he would not be able to attract a lot of investors. The greatest advantage of bitcoin is the constantly growing price. And even ease of use.