Bitcoin is kind of safety than real money. I mean trades and other economical stuff. It's more usefull and practising and it more protected although good hacker can steal your bc. But the same with real money and it's more dangerous to going anywhere keeping your money in one place with you.
It’s useful. You don’t have to get the paper money with yourself. Just Internet wallet. It is pretty comfortable. Also bitcoin is expensive, so you are rich as well.
I think it because bitcoin is getting a lot of popularity in himself. Why do you need to save the paper money when you can use virtual money and be in commercial plus for yourself? You shouldn't go to the shops exactly, you are rich and succesful. So that could be the reasons