Not everyone can just move between countries. Beyond the cost and family/friends situation... the basics of immigration come in to play. Will that new country

Not everyone can just move between countries. Beyond the cost and family/friends situation... the basics of immigration come in to play. Will that new country even allow you in? I'd looked in to this multiple times over the past couple decades, and it was often difficult or impossible short of having a few million behind you. In most cases, you'll need to have an actual employer-sponsorship lined up, and many employers in other countries are reluctant to bother. Not saying it doesn't happen, but it's not trivial to get those stars to line up.