Yeah the world is shifting towards cryptocurrency. But alot of people are into it, thinking about them dollars, Euros, whatever. This maintains the importance of fiat money..and this was thought of on porpose.
The bitcoin paper just appeard when it was most needed, right? What a miracle lol
Us dollar might not have the same importance it had at one point in time, and it might not have it again, but it will still be an importante store of value. One of the main ones. At least during the time we still use fiat money.