first of all, i don’t identify as latino, sorry!!! but anyway when i talk about mexico being treated the same way as canada, i mean, for example when it comes to prices, canada and usa have both of their dollars on the back of stuff, like if you bought a book in canada in the back it would say “10 usd/10 cad”, but no mexican currency? isn’t mexico also the neighbor and both nations have good ties?? it should be treated with the same level of important stuff
Also English language books are going to be predominantly sold in English speaking countries. And it makes sense cost wise to target both markets together rather than printing individual runs priced for individual countries where possible.
And Canada and the US both use dollars; there is potential ambiguity in price for manufacturers and retailers, so better to clearly specify both. There is not ambiguity with the peso - if a customer sees a book is $10 they will know there is a different price in pesos.