I learned that in Mexico the age of consent is 12
Is that true?
As true as true can be, and they're amazingly slutty after a certain age
These things may be technically legal in other countries, but people should not be having sexual relationships at such a young age because they are still immature and their brains are still developing.  You should wait until you are a responsible adult, and you shouldn't try to get anyone younger to have sex with you, either.
You must be a virgin or Christian of some kind.
Regardless of what you think about me, it is still true that people who are 12 years old are not fully developed and should not be in relationships with people who are older than them. Age of consent is a legal definition, not a moral one.