Why would you buy crypto ?

I mean wait this is a genuine DOUBT and I'm not predicting anything (because I don't have that much knowledge/experience). I'm actually thinking about what even makes crypto valuable ? It was supposed to be a currency and act like digital decentralized cash.. but most countries don't treat it as a currency but as an asset. Most people just buy crypto for investing(or gambling). While other asssets like stocks, commodities, bonds have some actual value in them that is visible clearly in real world... what does crypto have ?