Correct me if I am wrong with current teaching methods, but I feel like the way you outlined things is how school is taught. Calculators were "banned" until about 6th grade, because we were learning the rules of math. Sure, we could give calculators to 3rd graders, but they will learn that 2 + 2 = 4 because the calculator said so, and not because they worked it out. Calculators were allowed once you get into geometry and algebra, where the actual calculation is merely a mechanism for the logical thinking you are learning. Finding the answer to 5/7 is so trivially important to finding that that value for X is what makes Y = 0.

I am not close to the education sector, but I imagine LLM are going to be used similarly, we just don't have the best way laid out yet. I can totally see a scenario, where in 2030, students have to write and edit their own papers until they reach grade 6 or so. Then, rather than writing a paper which tests all your language arts skills, you will proof-read 3 different papers written by LMM, with a hyper focus on one skill set. One week, it may be active vs passive voice, or using gerunds correctly. Just like with math and the calculator, you will move beyond learning the mechanics of reading and writing, and focus on composing thoughts in a clear manner. This doesn't seem like a reach, we just don't have curriculum ready to take advantage of it yet.