The LLM doesn't have to be the sole single only exclusive source you learn from. It's an addition to a mix. Nothing is a single definitive answer. Same way as many other things, like Anki flashcards or Duolingo or some YouTube channel, or some tutorial website or indeed a coursebook or an audio course or whatnot. Use multiple sources and use the strengths of each.
What you describe is indeed the ideal method of learning. However, I think we both know that if LLMs are pushed as a learning device, people will substitute everything else for them (or companies will very strongly encourage that substitution).
