You can ask it very specific or even "dumb" questions and it will explain in great detail and spend way more "time" with your individual questions than a teacher normally could, leading to you being able to learn at your own pace.

Yeah, but there's 0 guarantee that it explains you anything factual or if it just makes shit up, either fully or partially. LLMs are absolutely not suited for this, which with them used as search engines and fact checkers has already shown. Teaching a bunch of generations possible false things and to rely on the word of machines that are just pretending to know things is just a terrible idea.

VR assisted teaching could be cool though, as there's a lot of additional tools that could be used in a digital space. But I don't see this becoming the norm, considering how expensive HMDs alone already are, let alone all the other equipment needed. People in many places already struggle affording the needed school books & general school stuff like blogs and pencils and teachers everywhere are almost always out of budget for their classes too.