Because when you are buying "everything else", you expect its EFV to be around $0, so most of the people budget it accordingly. But if you are buying an asset hoping that the 100% annual return will pay your credit card interest and help you catch up with your rent, and that growth doesn't happen, it's 2008 all over again.
All this really means is that the banks' analysts are substantially more skeptical about cryptocurrencies than their average customers and they are trying to reduce their own risks.
>But if you are buying an asset hoping that the 100% annual return will pay your credit card interest and help you catch up with your rent
If someone borrows more money than you can afford to pay back because you expected a guaranteed profit investing in a high-risk market, the cryptocurrency was never the problem.
Their completely irresponsible use of debt was the problem.
People can just as easily sink all of their liquid cash into cryptocurrencies, subsequently lacking the capital to repay their exiting debts.
All this really means is that the banks' analysts are substantially more skeptical about cryptocurrencies than their average customers and they are trying to reduce their own risks.