Is tomorrow the day?

Tomorrow Drew and Donnie head to the recruiters office. We felt it was to negotiate for what Drew wants and for some perks, like college money. But the recruiter thinks he's signing on the dotted line. "Bring your certificate of birth abroad, drivers licence and social security card."
Is tomorrow the day I become the mother of an adult? An adult who is heading off to the military? Not that he would leave yet, he has his senior year left. But he turns 18 in September and would be signing up in the Air Force with college plans, and ROTC plans.
I am really comfortable with our boys being in the military, I completely believe in our sons serving their country. But I'm not sure I'm ready to stop being "mommy" and start being his mother. KWIM? I'm so proud of him, and yet I'm also well aware of his immaturity and faults. I don't think he's ready to be out of our house. Granted, he would still have another year here, but still......
My husband will be with him and helping him negotiate for a great college plan.
The neat thing is that in talking with the recruiter today I found out we had our babies in the same town in Germany! Kind of funny!

*Update*
I am not worried about Drew joining the military or going to war. We have always told the boys that they need to serve their country, it is important. We know it will help them grow up, mature, see the world, and get a deeper love for their country. Young men should do it if they are able. (that is MY opinion, and I'm sticking to it!)
What concerns me is that Drew may be pressured into a field he is not interested in to fill a quota. Or that they will lie to him, or say that he should do this and that he can then apply for this and he loses out on schooling. If he doesn't go in as ROTC the Air Force can send him straight to war, but if he starts ROTC he has to be able to finish college first. And I want to make sure that life doesn't get in the way of college. Drew is a very intelligent person and he should go to college.
As a mom, I want him to focus on education and then head for a career and THEN start looking for a wife. He thinks I am trying to keep him from life, but I am actually trying to encourage a good life. Waiting for a spouse is a good thing, and being secure and mature only helps a marriage. Obviously it can be done in reverse order, I was married before I graduated high school, and I am still married to the same man. But it was ROUGH. And AWFUL at times.
Thankfully my husband is with Drew right now on their way to the recruiter and Donnie was "redirected" to a path they wanted to fill telling him he could cross train into what he wanted later, but he couldn't. They lied. Donnie was not able to have a military career because they did away with his position, and it was a high intel position that he was not allowed to cross train out of. Basically he was forced out of the military later on.
First things first, Drew has to figure out how to get out of joining the German Army, lol. He has dual citizenship and at 18 he has to join their Army, or denounce his citizenship.