Feasable for some maybe. I'd find it jolly well hard living in some places and very easy in others. Eastern Europe, and heck, a lot of Europe is difficult (if you don't have access to a kitchen).

I've ended up stranded in parts of the UK, where about the only option on the menu is to eat chips and salad. That gets a little boring. In Scotland I was even served powdered potato mash! In Italy I was constantly subject to ridicule. At least near the med there are vegetable options.