I think this idea is stupid, obviously, but gosh, your assertion that setting up a printer that works, getting the files, etc is complicated feels like it's a few years out of date. It used to be the case that owning and running a 3d printer was akin to owning and running a car back in the early 1900s -- you had to have a deep and intimate understanding of the printer and a mechanic's level ability to debug and calibrate it; if that's your jam, you can still do that (for example, the Voron project will happily give you the plans to make your own printer, largely from scratch), but it's no longer required -- with printers like what's coming out of Bambu Lab these days, we're pretty close (not quite there, but pretty close) to how easy it is to print with a laser printer. It's made the whole process extremely consumer-friendly.
(As someone who's been in tech for a while, it's tempting to analogize this to how when I wanted to register a domain in 1991, my peers told me basically that figuring out how to register a domain was an effective test for whether or not you should have one, and then more consumer registrars came around and now anyone who wants a domain can easily register one without, say, having to figure out how to run their own DNS servers).