None of the things named in your comment, on either side of the line, really matter.

Reading, writing, and critical thinking skills matter. You don't have to "write structured interpretations of 1950s texts [you] have no emotional connection to" or practice "handwriting, and reading stuffy texts from front to end" to develop those skills (very loaded language, nice job!), but you have to put a lot of time into doing something, ideally somethings, where you're the one doing the heavy intellectual lifting.

Or, we can just write these kids off as a generation incapable of thinking or building by themselves without AI tools that do the thinking and building for them. Honestly, it's probably already too late. The way we've allowed kids of all ages to be exposed to these tools is basically equivalent to handing out cartons of cigarettes in a preschool.