Good article.
I'm glad I followed this advice when I was in my youth, and got to explore all the places when I was young.
But there are still so many more places I didn't get to explore! Every time I see a 'where I've been' map I realize how much more I'd love to explore the rest of the world. But now, in an inexpensive, slow travel, immersion, sort of way. Not a cheap, quick glance, see everything all at once, sort of way I enjoyed in my youth.