That sounds like why would I want my kids to learn math. Calculators do it better anyways.
Why would I want my kids to learn to write. LLMs do it faster anyways.
Reason schools teach the basics before letting students using the shortcuts is to first develop the foundations needed to know what is going on.
So even if they aren't doing anything as machines do it they can still oversee what is going on if errors occur, which someone who doesn't know anything at all wouldn't be able to do. And if someome with no understanding without AI can do it then the human isn't needed at all at that point.