Just like people invest in a house and take equity out on it. Or they buy gold because they think it'll go up in value over time.
Regardless, you're being pedantic at this point. Back to the original discussion, there is utility to crypto now, and I've proven a way.
The point is that, unlike consumer loans, such loans require that the borrower has savings before they can take the loan. For example, most people who take a mortgage do so because they don't want to save money for 30 years before they can buy a house. They want to buy a house now, and save later. A mortgage loan allows them to do precisely that.
These other loans don't, and so they're less useful. They aren't completely useless. It's just that in most circumstances they aren't useful.
