The problem is a lack of balance, and in some instances skipping the entirety of Critical Reasoning. Why go through the effort of working your way through a problem when you would rather be doing <literally anything else> with your time. Iterate on this to the extreme, with what feels like a magic bullet that can solve anything, and your skills *will* atrophy.
Of course there are exceptions to this trend. Star pupils exist in any generation who will go out of their way to discover answers to questions they have, re-derive understanding of things just for the sake of it, and apply their passions towards solving problems they decide are worth solving. The issue is the _average_ person, given an _average_ (e.g. if in America, under-funded) education, with an _average_ mentor, will likely choose the path of least resistance.
I'm not worried about that at all. Many young people are passionate, eager to learn and build things. They won't become suddenly dumb and lazy because they have this extra tool available to them. I think it's the opposite. They'll be better than their seniors because they'll have AI help them improving and learn faster.