1. You have no idea what a real taco is.
If you’re about to try a taco in Mexico for the first time, please erase everything you think you know about a taco. Other than the word “taco,” there’s not much else in common between a Mexican taco and an American or international one.
First off, you probably think tacos have the following ingredients: sour cream, cheddar cheese, flour tortilla (or corn shell), and lettuce. Wrong. In Mexico, it’s practically impossible to find a self-respecting taco stand that would allow these ingredients to be put together.