RomantiZIHsmo Mexicano

Well, yes... in that it is a meaningless piece of paper so you'd have to have an actual license from an actual government entity. AAA sells them based on paying a fee and having a photo to give them, and that is it. There is no test or other verification of any kind, and no one (police or rental car companies) actually wants to see it if you have one. At least, that was the case in Europe.

My guess is at some point in the distant past they meant something, before there were treaties to mutually respect each other's drivers licenses. And somehow they have remained in policy and legal docs even though they have zero legal meaning or significance.

Just don't even think that an international drivers licence will ever give you any added legitimacy, with or without a government issued license.