Nowadays people are connecting with digital money and crypto currency is a platform where they invest and also earn profit. Thats why this market is becoming popular among the people.
I believe with Brian Armstrong's prediction in 5 years that bitcoin users reach one billion people, because there are several advantages that bitcoin has compared to fiat money. Among other things, transactions are simpler because they do not involve banks for large transactions. It's cheaper, because it doesn't matter how much the transaction value costs are the same.