Executive function is not the same as weaving or carpentry. The scary problem comes from people who are trying to abdicate their entire understand-and-decide phase to an outside entity.
What's more, that's not fundamentally a new thing, it's always been possible for someone to helplessly cling to another human as their brain... but we've typically considered that to be a mental-disorder and/or abuse.
What you described is what people do every single day. Every decision we make, choice, piece of information we think, has been selected for us by others. And we don't even stop to think about that, we just accept it.
Here's another cooking example: try to look up a recipe right now. It should contain meat, veggies, fiber. What will you get? A recipe that is generic and tailored to the masses in your general location. It's genuinely hard to find a recipe for food that isn't extremely familiar to the culture assigned to you (even if you're actually 1st generation Chinese, if you're browsing from Ohio with Google using English language, you aren't gonna get authentic Chinese dishes back). Because whatever system of systems is looking up recipes for you, is designed to do that; to think for you, and provide you a set of basic, canned responses.
The entire world is that. Nearly every part of our world, we abdicate. Our decisions are not really ours; they're a constructed set of possible decisions defined by other people, programmed into our brains by osmosis. And you go with it, because otherwise the world would be too hard to deal with.
This causes you to not only "lose" information and skills people had in the past, it defines who you are now and what you do. And it's been happening since civilization started. Actually before, since it's about your ecosystem, and systems of systems. AI is now a part of our ecosystem and will define who we are, and we don't really have a choice in the matter, because it's systemic.