I'd share a little bit experience about learning from human teachers.

Here in my country, English is not you'll hear in everyday conversation. Native English speakers account to a tiny percentage of population. Our language doesn't resemble English at all. However, English is a required subject in our mandatory education system. I believe this situation is quite typical across many Asian countries.

As you might imagine, most English teachers in public schools are not native speakers. And they, just like other language learners, make mistakes that native speakers won't make without even realizing what's wrong. This creates a cycle enforcing non-standard English pragmatics in the classroom.

Teachers are not to blame. Becoming fluent and proficient enough in a second language to handle questions students spontaneously throw to you takes years, if not decades of immersion. It's an unrealistic expectation for an average public school teacher.

The result is rich parents either send their kids to private schools or have extra classes taught by native speakers after school. Poorer but smart kids realize the education system is broken and learn their second language from Youtube.

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What's my point?

When it comes to math/science, in my experience, the current LLMs act similarly to the teachers in public school mentioned above. And they're worse in history/economics. If you're familiar with the subject already, it's easy to spot LLM's errors and gather the useful bits from their blather. But if you're just a student, it can easily become a case of blind-leading-the-blind.

It doesn't make LLMs completely useless in learning (just like I won't call public school teachers 'completely useless', that's rude!). But I believe in the current form they should only play a rather minor role in the student's learning journey.