I see the following uses for cryptocurrency:

- Turning my "being good with computers" / learning about it early on the internet into money

- Buying illegal stuff on the darknet (which I didn't do yet)

- Speculating / Gambling

- Transferring wealth across borders while avoiding high conversion fees

While these are typical money functions, they are all fringe activities. I don't see myself ever using bitcoin as a replacement for Euros - that is for receiving my salary, for buying things (that I can get legally), for investing or saving.

One reason is I don't share the crypto-idealists idea of an anarcho-capitalist utopia...