@candy49, living in Panama I have met a ton of foreign children. Kids will be kids, and sure there are always exceptions, but most of the expat kids I have met here seem to be better adjusted, more open, and more outgoing than the kids who didn't "move around the world." They are also more mature, speak 2, 3, or more languages, and report to me that their friends back home (Canada or the US) are boring when they go back to visit.

Kids should not be a reason not to move. They should be one more reason to embrace the adventure. I believe moving abroad is one of the best things you could ever do for your kids.