> Any definitive claim to know what are the right things kids should learn in a moment of rapid technological shift is probably garbage and just a projection of our own biases.
I don't think this is as clear as you make it out to be.
There are areas (e.g. personal care as per the impact map released by Anthropic a few months ago) where the impact of AI will be less than in the ones HN often discusses. Communicating with people is important in many of these areas so making sure that kids "should learn" how to communicate is a good investment regardless of how rapidly technology is shifting. There are different time tested ways of doing this and while you can "disrupt" these a little, throwing them out completely is, at least to me, a bad idea.
OTOH, doubling down on learning "skills for the future" which are all bold bets while sacrificing things that have served humanity through multiple moments of change is probably a bad idea.
As for cursive writing (or atleast handwriting) itself, there are several studies of learning it being associated with developing fine motor control, improving memory, improving focus. I can't find them right now but I remember reading them because of my own interest in calligraphy. Many older (especially religious) traditions place emphasis on using written (rather than digitally typeset) books for memorisation because the slight changes in the shapes of the letters act as reinforcements for the process. I know this from experience as well so I think there's definitely value there.