I think the downsides of travel are being overblown, moving overseas however would present a problem if one is moving to a 3rd world country or China. Currentl

I think the downsides of travel are being overblown, moving overseas however would present a problem if one is moving to a 3rd world country or China. Currently 82 countries have eSim support for iPhone, typically it is poorer countries that don't have eSim support. More reasonably one would utilise an inexpensive worldwide provider such as TruPhone for travelling - there are currently 15 worldwide eSim providers for iPhones.