I understand the concern but then to make this available for adults you now have to provide proof of age to companies, which opens up another can of privacy worms.

Not sure the condescending tone is really necessary. I’d agree with you if the parent comment was saying they asked an LLM to create a math curriculum and problems for them. But they’re using an established app created by a math major and then using LLMs to ask questions. It’s easier to validate the responses you get back in those cases.