Thanks @vegas1! Your approach sounds spot on to me. 
Traveling to visit with friends is something AppleKid is hoping for, and we also look forward to reciprocating and getting to know some of these kids a little better too.
Out of all the concerts I have been to I have been lucky enough to find the sex thing going on. But there are certainly a lot of drugs.
Just curious, does anyone drug test their children?
Yes:
Me: Is this marijuana?
ChoatieKid: No mom, that’s basil. That’s for spaghetti. The marijuana is for the brownies.
Test passed.
If you are going to test your kids, ask yourself what your going to do about the results beforehand.
Also realize that some more serious drugs can stay in one’s system for only hours while relatively innocuous drugs like marijuana will stay in much longer. I’ve heard of teens who were routinely drug tested who moved from alcohol/marijuana to what I would consider stronger substances to avoid/minimize drug detection.
Ugh! %-(
I think being able to tell marijuana smell is a good parental skill. It does have a unique and strong smell, whether it is consumed or just carried.
I think most people learn to recognize the smell of marijuana long before they become parents. 
As an uber-responsible parent, I’ve taught the important marijuana-smell-recognition life skill to my older child by noting the wet skunk odor permeating certain sections of our neighborhood.
So have I. Since it was practically legalized in California, we can spot them everywhere when we visit downtown.