A big decision like this is precisely that, emotional. It's probably fair to say many people made a move and tried to buy property from afar, without really knowing what they were getting into. Without having ever visited that country before and perhaps then decided to return. That sort of thing happens all the time and can be avoided. But it's not irrational or wrong per se, I don't believe people should be afraid of taking such risks. Just like never ever leaving your country of birth is not necessarily wrong either.

Having made a similar move, I am emotionally levels above where I was in my home country. It's so rewarding and fulfilling for you to feel like you have found a place you can call home. A place you recognise and one that welcomes you. In my case, the rational thing WAS to move. Sometimes you can't improve your local environment. It depends on the individual. Starting something new is exciting, daunting and in some ways destructive.

The point is, only you know when it's time. And categorising people into one of 2 extremes is not useful. Everyone's situation is different. The grass IS always greener, but sometimes it doesn't just depend on you watering it.