What role does the coin have?

In my opinoin, this kind of coin might replace "real" money in the future.

I don't think so. It is unfeasible that coin replace real money! just some kind of money on internet!

i still don't understand, can you give me some example?

We can clearly see that more and more people are interested in shopping online, so, it will be more convenience if we use coin.

how can i have coin?