Here's my take: The author was born in the 90s, and was in elementary and middle school in the 2000s, when keyboarding was already seen as a primary skill. His take that "nobody writes cursive anymore" is true, given that for him, "everyone" is under the age of 30. Those of us who grew up prior to personal computers and phone touchscreens being ubiquitous can scream all we want "I learned cursive and I still write it…
I learned math and programming but I wish I'd also taken wood shop (and metal shop, and other practical courses.)
Making actual stuff with your hands and using physical tools is immensely satisfying and empowering. I really crave it after spending all of my time staring at a screen and typing on a keyboard.
Other practical skills like personal finance, home improvement and maintenance, and cooking can pay dividends for the rest of your life.
I wish I'd had more time for many courses (also including music, art, drama, etc.) that weren't part of the "college prep" track.