Example: Old people often complain about young people not having "basic knowledge" and say that younger generations know and understand less of the world than they do.
I don't know that cursive has demonstrated benefits, but writing by hand does improve learning, as does reading on paper.
Cursive has a weird cult following. As someone who likes the idea of cursive, it took quite a bit of effort to give up on it. It's only theoretically faster, and it does so at the expense of legibility. I can't read my own writing at speed, and I can´t read Charles Darwin's either.
I started taking up Gregg shorthand to solve this problem. Faster and more legible, even without abbreviations.