In a typical way it is really ideal to use the source of income is the business and other assets that are more tangible than crypto because in the future the value might move not as fast
It's not just about the value going up, but it's also about being less vulnerable to an economic crisis and other problems that make the so-called tangible assets vulnerable to devaluation. Bitcoin got few fundamental characteristics to appreciate at least for next 100+ years which makes bitcoin complete unique in the investment universe.
but there's an assurance you can do anything on it well depends on the concept and the place of course.
Even if you can't do everything using Bitcoin or cryptocurrencies, you will at least be able to get a higher value in fiat if you convert it later when the times are better and the economies are quite stable after a crisis.
But today some of people today are using the technology or the crypto world itself to gain money beside of it, as long as you keep earning its good. At some point they are now doing the crypto as source of their income like trading still good run to use this to help your current status.
It's volatile and people love it because it provides profits. Everyone likes earning money using their own money that is kept idle, and cryptocurrencies provide the perfect opportunities for that.