Joining the military is a really good thing for most people. My dad was an officer in the air force for 23 years, got to see a lot of the world never got deployed worked really cool jobs in space and missles within the air force. If that's what your friend wants don't try and stop him. If he joins the marines, yeah he will be deployed. But I mean if he joins the airforce he will be stateside most likely. Let him make his own decisions. Oh and I love my dad and super proud he served his country for so long but I would never join the armed forces in a million years, I moved around 9 times growing up al were cross country moves, So I just don't ever want to do that again, it was fun and I have seen a lot of things and got to go overseas and travel the world but still It's just not right for me.