NEW PESO POLICY: Mexico announces new, peso-only policy - Travel Industry Today
It is now official. Only pesos and cc accepted in Mexico.
Now, I don't like Mexico - at least I don't like the police and officials there. I find them completely untrustworthy to the point of downright dangerous.
With that in mind, I would never use a credit card in that country under any circumstances. As a rule, I won't even get off the ship when in Cozumel or whereever.
It is their country and they have the right of course, to set their rules. There is no reason for them to take $$ for the U.S. or Canada. I don't begrudge that for sure although I know many feel they should take U.S. $$.
Nevertheless they have made their decision and this is just a heads-up to those who are heading there.