Is there a reason you believe USD, EUR etc. has value, aside from "other people believe it has value"?
Bitcoin at least has a utility built into it, facilitating transfers and 100% guarantee that limited amounts of btc can be created.
Fiat currencies and btc are not the same but the underlying principle is the same. Demand and supply. If there is no demand its value will plummet.
2007 crash cause swiss frank to sky rocket in value. For no other reason then international crowd started buying franks to store their wealth in it not USD.
There are many obvious reasons to believe fiat currencies have value. But perhaps the most obvious one is that having and using fiat currency is required by 99.9% of people in order to stay alive. Staying alive is quite valuable.
In the real world 99.9% of people require fiat currency to obtain water, food, shelter, and the rest of the things required to keep them alive. This is actual real-world value, as opposed to the theoretical value that Bitcoin might possess some day if everyone buys into it and nothing goes wrong.
I (and anyone else) can buy food and water with BTC. This statement along completely negates your point. To understand why BTC is valuable and educate yourself on the topic of money, I recommend this book: https://www.amazon.com/dp/B07BPM3GZQ/
Bitcoin at least has a utility built into it, facilitating transfers and 100% guarantee that limited amounts of btc can be created.
Fiat currencies and btc are not the same but the underlying principle is the same. Demand and supply. If there is no demand its value will plummet.
2007 crash cause swiss frank to sky rocket in value. For no other reason then international crowd started buying franks to store their wealth in it not USD.