The are many reasons to people should use Bitcoin more than money. The first, it can devide to small pieces (1BTC = 100,000,000 satoshi). The second, it easy to transaction. The third, it is not inflation. And the last, we don't waste paper to print cash.
The system is always impressive so we should benefit on this since we knew it first, I am investing now for the future
as I believe there will be more people that will use bitcoin and it will just bring the price up.