The only thing I know about Bitcoin is that it is a virtual 'money' but what are the other use of it? What are your advantages for having a bitcoin?

Really? That's the only thing you know about bitcoin? Then how did you earn that rank of yours if you only know about bitcoin is a virtual money? Why don't you use Google to search other uses of bitcoin? We all know that having Bitcoin is a big advantage compared to people who dont know about it, we earn money in BTC.
To know about Bitcoin is the biggest advantage of your life and do not know about Bitcoin is the biggest disadvantage of your life. You do not have to ask about Bitcoins advantages and disadvantages but should know how to get knowledge about Bitcoin is your ability to learn about the futures currency. After entering into this business the only disadvantage of Bitcoin is to reveal your wallet password and email and this is the only risk in this business.