He wants everyone to suddenly stop using money. If that happened, who would wash the dishes? Many communes have failed over this exact issue. They go on for several years with several people, usually women, making the sacrifice and doing what needs to be done. But eventually, the people who do the dishes get fed up and stop, or leave. And then the whole thing collapses. The alternative is for the leaders to have some…
Money originated as a way for kings to pay troops, who operated outside these village economies.
Money has made it possible for us to build impersonal systems at gigantic scale. It seems to have paved the way for more stuff, but it does come with some downsides.
Debt, The First 5,000 Years [0] by David Graeber talks about this stuff.
[0] https://theanarchistlibrary.org/library/david-graeber-debt