Even though Bitcoin was initially called a cryptocurrency, I think it's now becoming more clear that cryptocurrencies are more like "cryptoassets" [1] or crypto commodities.

Some of the people who started calling it digital gold a while back got it right. Using Bitcoin is more like using gold (not necessarily physical gold) to pay for stuff. Gold's value also fluctuates significantly over one year's time.

[1] - https://medium.com/@cburniske/why-i-like-the-term-cryptoasse...