Bitcoins on the other hand, don't have value on their own, and if nobody wants to accept them in exchange for dollars, goods or services, no legal action can be taken by their 'owners' to get some kind of value out of them. As such, Bitcons are just empty numbers on the internet, which means that people are exchanging real values for literally nothing.
If my analysis is correct, I think that the same can be said to money. If nobody wants to accept them they are just pieces of paper with numbers, places and faces of known person in them. Everything in this world can lose its value if no one acknowledge it and that includes money not just bitcoin. We know that btc is valueless when it started but then people started realizing its value thus making it valuable to people like me. I just hope you're not one of those people who speak rudely of btc then later on purchased and invested in it.