Meanwhile I bet if you polled all the teachers in that school you'd find a significant chunk claiming they have to buy classroom supplies with their own money.

School systems are chronically run by idiots with their heads up their asses. My high school spent a fuckton of money remodeling the building to look like a goddamn hospital but they couldn't get the gym roof to stop leaking for 20 years before that because they would spend money on dumb shit like new playground toys because some fuckwit went to a seminar that said dumb shit about slides being classist