Don't know anything about Mexico, but I have been to Romania, and once you get out into the sticks, it's sounds about the same. You might be suprised as to how few there are. When you are raised in that sort of environment, you quickly learn how to deal with it. The problem here in the states, IMHO is that we have had such a safe system, for so long, that few people understand how to deal with something out of the ordinary. In places like that, "out of the ordinary" is in fact the norm, and you deal with it. Kids learn to not stick fingers in where electricity might be, and so on. Going to places like that, make me appreciate people like Joe T. and Mike Holt, and despite all of the doom mongers, and the occasional utility quack not wanting to deal with leaky wires, the US utilities are very safe.
Side note, does anybody know just how much electricity is generated in the North American continent in a single day? I have never been able to find out.