I want you to understand that Bitcoin was not created for investment purpose, it was created as a means of payment when doing business or trades, it's due to it volatile nature people started seeing investment opportunities in it, since it's an asset that appreciate in value overtime, but right now, their are more investors in Bitcoin than those that sees it as a means of payment, because of the sole reason that it has made a lot of millionaires even till today.

So it's not just an investment, it can be used as a means of payment and I believe that in the future time to come it can also be used as collateral to borrow some fiat from the bank in the future, it's just a matter of time.