One question that always comes to mind when discussing illegal drug use is, does anyone know anyone who has ever said, "I sure would like to use ________(fill in the blank with any illegal drug), but because it is illegal, I wont.
My view is that anyone who wants to use drugs that are illegal are using them, and that making them legal will not increase their use to any degree.
Also, as during prohibition, people usually sought out the most concentrated form of alcohol available, moonshine, 180 proof grain alcohol, now I believe it is sold as Everclear, because the less you had, the easier to hide, and therefore a lesser chance of getting caught. The same is true for drugs. I believe that the increase in meth use is directly related to the facts that marijuana is a lot bulkier that meth, and that marijuana stays in the system a lot longer, so those that have to take drug tests are more likely to use meth than pot. Make pot legal, and you will see a significant reduction is meth use.
I saw similar situation happen in Viet-Nam. For most of my tour in Viet-Nam not much was said or done about pot smokers, and there was quite a bit of pot use, and little use of other drugs, but in the later part of my tour as the war was winding down, someone came up with the bright idea to crack down on the pot smokers. The result was that some of the pot smokers quit, but others then turned to heroin, which was sold in small vials about the size of the last joints on your little finger. It was 98% pure was sold for $2.00 per vial, and the next you know there were hundreds if not thousands of heroin addicts in Viet-Nam.
The real issue with mind altering drugs,legal and illegal, alcohol included, is why is it that so many people feel the need to use them? Until our culture changes so that fewer people feel the need for mind altering substances, the "drug" problem with continue.
We have been fighting the "war on drugs" for over 40 years. It has been an abject failure in that it hasnt reduced drug use to any significant degree, but has taken untold billions of dollars of our tax money and transferred it to law enforcement, lawyers, judges, prison building companies, prison guards and a host of others.
I believe it was Albert Einstein who said that the definition of insanity is to keep doing the same thing over and over and expecting different results.
As far as traveling to Mexico, if you think it is safe go. If not dont go.