[fragmede]

Banking. (Which is a technology, albiet quite an old one.) If someone doesn't personally have a mortgage or car loan, and gets paid in cash, and doesn't use banks at all; Does such a person need banks to exist? Does society? Some people I've talked to honestly believe the answer is no.

[SkittyDog]

To be clear, are YOU advocating for the belief that banks don't need to exist?

Because the statement is technically true, but basically meaningless... Cars don't need to exist, modern medicine doesn't need to exist, electric lightbulbs don't need to exist. But they all provide conveniences and functionality that most people seem to appreciate, and would not be willing to part with.