Mexico is never as cool or friendly as high school Spanish books imply. Then again, neither is France and I'm sure those Romans were fuckers too.
My high school Spanish teacher made us bring stuff for tacos every week and we all thought that was cool until someone saw her sneaking tupperware out of her bag and taking home the leftovers. Then it was just sad.
But yeah, according to "Voces y Vistas", all Mexicans are hip teenagers in cosby sweaters and acid-washed jeans, who do nothing but play the guitar, buy churros (and cacahuates at the zoo, for some reason) and try to find the library.