But both cursive and manual stick shift (at least in the USA) are being used less and less, but computers are being used more, while literacy goes down.

I think it has to do with barrier of entry. Way back in the day, you had to be quite the hacker to operate a computer (say Amiga or ZX Spectrum). Then, with Windows XP (or 98), it became easier to operate one, but some tasks still required clever ways to solve. Fast forward to now, all you have to do is click one icon at the bottom bar, write what you want in the top bar, and you got a billion answers.

Most of the stuff I learned was because the path to successfully perform stuff required knowing lots of different stuff.

For context, first PC was Win 98 when I was 7, born 1996.