Okay I would just like to clear this up before anyone else gets this incredibly stupid idea of "you go to Mexico you die." The American media has been so hopped up on the drug wars that they make Mexico seem like a constant battlefield.
Mexico is almost no different than the US. You don't want to be a white person at night in Tijuana just like you don't want to be in Detroit, Baltimore, etc. I bet a lot of people that are spewing out this nonsense have never been to Tijuana or anywhere outside Cabo. As long as you aren't like this girl and looking for criminal activity in Mexico, you are fine.