This one's now a lesson in the classroom, and it's the one I'd point a brand new family to first: the gear you actually need to start 3D printing, and nothing you don't.
We kept seeing those giant "must have" lists online, and most of it you don't need on day one. So we split it into what matters right away versus what can wait, and walked through the short list. PLA to start, a glue stick for adhesion, IPA and cloths for the plate, flush cutters, a scraper, calipers, a way to keep filament dry, and the safety basics. On safety, get ventilation sorted, get an air quality meter that actually reads VOCs and PM2.5, and put it on a battery backup.
I also made a one page Starter Sheet to go with this lesson. It's the gear list plus our beginner settings and the first-fail fixes, the stuff we wish we'd had taped to the wall on day one. It's attached to the lesson, free to download.
We're building these classrooms out so the useful stuff stops disappearing in the feed. More coming.
What's one tool you didn't expect to use as much as you do?