I think this is one of the reasons.
It is easy to believe that everything will change in life if someone changes the environment and places their physical body in unusual and new conditions: places and people, climate and cuisine ...
And this really happens, the first time when the "Ego" is knocked out of usual gauge.
But time passes, more or less, and the Ego gets used to it and "hello again!" we come face to face with... ourselves!

It is important to remember that traveling on the surface of the planet is important, but slightly less than traveling into the depths of ourselves.