The important thing is that I could learn to use a flint and steel pretty easily if I wanted to. I don't need to carry out that particular task, but my ability to adapt to new problems means I can carry out more relevant tasks when needed. The most useful part of school and university for me wasn't that I learned the difference between a cirrocumulus and a cirrostratus cloud in geography class. It's that I learned how to learn.

If we let children cheat their way through school and justify it by saying they don't really need to think for themselves anymore, then we're going to end up with a generation of adults who struggle to take on any difficult tasks at all. I suppose your counter-argument to that will be "but we can just hand over everything to the AI" but that's an essentially an argument that humans should be considered obsolete altogether. I sincerely hope that that's not a path we end up going down (although I'm genuinely scared that it is).