This is all information that the parent would have anyway. Lunch isn't private information, the curriculum isn't private information, tests and homework as well

This is all information that the parent would have anyway. Lunch isn't private information, the curriculum isn't private information, tests and homework as well isn't private, its just that it was all a shit ton of minutia that typically didn't get memorized by any individual. Part of being a parent is helping your child navigate and learn about the world. Having this sort of information - what are the details about what this institution is offering on a daily basis - sounds invaluable.