The reality is that a human will learn, given any materials including LLMs, but only if they truly desire to learn. We've had MOOCs, gigantic libraries, all full of free information. You can obtain a PhD level understanding in any technical field of your choice today just by consistently going to the library and consistently applying yourself.

It's not unlike going to the gym, and we see how many people do that regularly. Except it's even funnier, because people serious about the gym but what? Tutors. They call them personal trainers. We've known for a millennium or more that 1-on-1 instruction is vastly better than anything else, but most people actually don't want to get into shape, and most people actually don't want to learn.