Cryptocurrency is used not only to buy NFT but also to buy different projdects. The adoption of cryptocurrency grows and more and more shops started to accept cryptocurrency.
It is possible to buy different goods and products for cryptocurrency.
In my place there are not many shops that are willing to accept cryptocurrency when buying goods or services, so it still needs wider adoption because some people may still not understand what cryptocurrency is.
So in general the adoption of cryptocurrency is still not so widespread in this world even though it is very good at this time.