I'm not even sure I needed to read the article, I agreed with title in terms of the specific application to hiking, and any other tenuous analogies one could come up with.
Want to start going to the gym? Do it in jeans until they're too uncomfortable, then buy something that helps you keep the momentum going.
How about running? Yep, jeans.
Swimming? Maybe not honestly.
Climbing/bouldering? Yep, although you might be looking for an alternative quickly.