Unpopular opinion: macroeconomically, "need" is tricky as a bar for purchase decisions. In our pretty-efficient and specialized system people make way more stuff than is needed, and often stuff that isn't "needed" in exchange for their salary which goes to food, shelter, etc. Without consumer demand for their specialized labor, they can't afford necessities in the current system.
If you pare down the economy to things that are truly Needed, then so much of our work and livelihood is on the chopping block. I don't think we should all go to being isolated subsistence farmers - rather we need to establish a baseline of support so that everyone's real needs are met and if folks want to labor in exchange for advertised luxuries, they can