I generally agree with the points of the article. I think a better title would be "What you need to know to be anything you want to be".
The economy is complex enough to provide room in just about any field someone would want to enter--but there is no golden ticket piece of paper that will open the door for you. No one wants to grow up to put plastic on the end of shoelaces, but many are not adaptable so they try to beat a dead horse even though technology has supplanted their job (a bad move as you rightly point out).
My point being, don't swing too far in the direction of "Life sucks, deal with it!" because that's not quite true either.
Yes, I also agree with the advice but not the conclusion.
I suspect the only people in their 30s who can honestly say they spent their entire 20s in full-time pursuit of a career in their passion and got nowhere are PhD graduates. This says more about PhDs and mistaken beliefs surrounding them than anything else.
I feel like I had more options for what to be (i.e. career) than I was aware of, it's just the "how" that was left out.
The economy is complex enough to provide room in just about any field someone would want to enter--but there is no golden ticket piece of paper that will open the door for you. No one wants to grow up to put plastic on the end of shoelaces, but many are not adaptable so they try to beat a dead horse even though technology has supplanted their job (a bad move as you rightly point out).
My point being, don't swing too far in the direction of "Life sucks, deal with it!" because that's not quite true either.