It's not a given. It's about willpower and care. LLMs are the ultimate crutch. I over-rely on the crutch, more and more people will over-rely on the crutch. But it is still inherently a psychological problem.
You can still know things and get force multiplication out of LLMs, if you are disciplined and caring enough. In practice, most people won't be. And you can't force other people to be. But you can force yourself to be.