I think you're being a bit misleading there: if you live in Canada or the UK you'll get the protection and support of their consulates and government whilst abr

I think you're being a bit misleading there: if you live in Canada or the UK you'll get the protection and support of their consulates and government whilst abroad, and you won't have to pay taxes on your earnings (if you're a genuine expat, rather than short-term travel). I used to work in the Middle East in a western compound, and this was a huge bug-bear between the US citizens and the EU/Canadian ones. Under the US's system you could leave the US as a baby, never take advantage of any of the services provided by the US, and still be expected to pay taxes on your foreign earnings in perpetuity.