Just wanted to comment on the whole "is it the school's business?" debate going on out there...
I am NOT a lawyer, but I have completed my Master's degree in Educational Administration. That means that if I choose, I could become a school administrator (principal) some day. I mention this only because we are required to go through School/Case Law courses as a part of earning this degree, and case law has very clearly defined the role of the school in this regard. I did complete my degree 8 years ago, and thus, things could have changed since then, but I'm pretty sure they haven't.
Here's what we were taught: *****If an incident involving a student happens off campus, and the school is notified in any way, shape, or form (phone call, letter, students are talking about it in class, etc.), It now LEGALLY becomes the obligation of the school to address it. IF the school does NOT address it, and something else happens, the student(s) involved are now legally able to sue the school for not acting on that information (AND case law has shown that this has happened in the past to set this precedence). So, like it or not, once the school found out about it, the school had a legal obligation to address this issue.
Also, I really don't buy into the whole 'kids will be kids; kids will screw up; let's teach them to drink responsibly; etc.' way of thinking. Here's why. Throughout childhood there are certain things that are appropriate for children to learn at certain ages. This should be based on the maturity of the child, and obviously, laws should be followed, as well. For example, I don't sit my four year old (or even my seven year old) down and watch horror movies with them "as a family" to help prepare them for the fear that they might experience when they watch horror movies when they're older. That would be completely inappropriate and not fitting to their maturity level, nor would it do anything to help them...even if I'm sitting in the room right beside them. Dorky example, I know.
Here's a high school example: Some parents think that if they just teach their children how to drink responsibly by SUPERVISING the drinking, then the kids will be fine. After all, 'all teenagers' drink at some point or another, right? Well, that would be like me saying, "Hmmm...'all teenagers' are going to want to experiment with sex, so I should SUPERVISE a sex party for my teenagers and their friends so that they can learn about sex in a controlled environment. I could even provide a basket of condoms and talk to them about safe sex. Legally, they don't have to be 21 to have sex (like they do to drink). They're going to try it anyway, right?" WRONG. I would hope that you would think I am absolutely insane for even suggesting such a ridiculous notion. That is how ridiculous the notion of 'supervising' underage drinking parties is to me. Educating your children about drinking, drugs, sex, etc. is important, and please do educate your children about it! However, understand that your child shouldn't have to _________(drink, have sex, take drugs, etc.) to understand that there is a time, place, and age for certain things to happen...and their teenage years are not that time.
*ETA Response to Dana K.
I absolutely agree that it is important to educate our children on drinking and sex. Please see the last two sentences of my original post. However, please do not put words in my mouth.
Some of the questions that you bring up were not ones that I addressed in my post, and thus, it is mere assumption that you would think I would feel a certain way.
In the US we may be an exception in having a drinking age of 21; however, numerous reputable sources have shown that the human brain has not fully developed until the early 20s. Other numerous reputable sources have also shown that alcohol consumed in the teenage years can damage the immature brain, leaving long term and irreversible damage.
One of the first areas of the brain affected by drinking is the central nervous system, which controls speech, vision, hearing, reaction time, MEMORY, and causes HAZY THINKING. So it is almost comical when parents think that supervising a drinking party is going to help "teach" the teenager how to drink responsibly. Hmmm...if their memory is impaired and they have hazy thinking, I'm not too sure that the teenager is truly registering the learning that is supposed to be going on. Also, there is a huge difference between drinking parties and allowing your child to have a sip of wine or drinking a beer in front of your child. It is LEGAL for an adult at age 21 or higher to consume alcohol. Parents should not worry about hiding reasonable drinking from their children. It only becomes a forbidden fruit when you make it one. We wear seat belts in our car. We do it because numerous studies have shown that seat belts can be life saving, and because wearing a seat belt is required by law. We don't NOT wear seat belts on some occasions just to show our kids what it is like, and we don't make NOT wearing seat belts a forbidden fruit. We wear our seat belts...that's just how it is!
Furthermore, if we want to talk about the age old argument of being able to join the armed forces at age 18 vs. not being able to drink at age 18 (which, by-the-way, I never once implied that an 18 year old is still a 'child'), at least the decision to join the armed forces at age 18 is one where the central nervous system isn't impaired (unless, of course, the 18+ year old adult is drinking at the time that they sign up to join the armed forces). Although, I will say that I work with right under 200 students in my classroom EVERY day, and I do not feel that some of my 18 year olds were truly ready to sign up for the armed forces. That is a huge decision for anyone to make!
Finally, with regards to sex education and birth control, my original example specifically mentioned a 'sex party' for teenagers and the mention of a basket of condoms was sarcastically meant to 'excuse' the allowing of a sex party. I fully agree that teenagers need to be educated on sex, and we want our kids to know that they can come to us at any age, for any question, and we will be there to provide guidance and support.