K-12 needs pencils, markers, pens, construction paper, regular paper, notebooks, assignment folders, erasers, pencil sharpeners, call it what you want but books with text kids need to read when they get home, art supplies because yes art is important to development, and most actual developed nations unlike our gold plated shithole also provides technology like tablets or laptops of some kind to their kids, not just their rich kids at the right schools.
If your point is that we should race to the bottom and provide the cheapest possible nuts and bolts education devoid of any curriculum not directly tied to becoming an efficient wage slave by eliminating any creative expression in K-12, I would contend that such a society isn’t worth existing and those kids would be better off dead than to be taught their very lives and educations exist solely in service to our beloved economy.