I do wonder though if there's an increase in things like vanlife roadtrips in the US, people doing laps of Australia, etc. Though the travellers are often hitting the same list of destinations, doing it under your own steam means that adventure and discovery are inevitable. You often don't know where you'll be sleeping on any given night.
(I've been on adventurous train trips in various countries, and also on luxury hosted rail trips. They both have their place for different types of people, though the adventurous trips, whether rail or otherwise, are my thing.)
Traveling to Thailand a few years ago was quite different. The internet allowed us to preview every leg of our journey and there’s really not much mystery. On the other hand, it’s easier to get deals and figure out efficient ways to get around. But something has been lost, for sure.
No doubt travel is still an enriching experience, but perhaps it affords fewer chances for adventure and discovery than it used to.