Hi,
I am pretty new to this forum but not new to loving Drum Corps. Sadly I never marched. My daughter also never marched Corps even though she had an opportunity to do so. She is now 22 and a senior in college. We attended DCI finals together in Indy and had a great time. She did not march corps because when she went to camp she did not feel like she fit in with most of the other people that were in her section. I wanted her to march but I respected her decision and I think it was the right one for her. That is a decision that has to be made by the parents and the young adults before joining any organization.
As for this topic. You mean 16 to 22 year old young adults have sex, drink, cuss, and smoke. Tell me it isn't true. Visit any high school or college campus to see more of the same. Sure the corps have to keep things under control but they cannot watch them 24 hours a day. They have to be able to make the right decisions to do the right thing. No matter where they are they can get into trouble. All you can do as a parent is bring up the best way that you can and help them try to make good decisions but there comes a time when they have to make those decisions for themselves.
Glenn