The article strikes me as good advice. I didn’t find anything to disagree with in it.
Ageism is a thing. People have all kinds of biases of which they may or may not be aware. You have them too, and so do I.
A line from another source that I keep in mind is this: “If you’re always getting angry, you’ll turn your nature against the Way.” [1] It doesn’t pay to be the angry, unapproachable person in life.