Your friend has chosen a tough career field, but he has nothing to lose looking into it. I've got a couple of life long friends that were both pilots in the USAF, and from talking with them, here are some of the things I've learned.
First, your friend needs to decide "what" he wants to fly, or if anything with wings would do. Both of my friends saw themselves as future fighter jocks. One ended up in B-52's, and the second spent his career flying cargo. There's nothing so humble as a fighter jock waddling down the runway in a B-52 or a C-140.
Your buddy also needs to understand the odds at even making it into flight school. Besides the education, there's the physical, eyesight, coordination tests just to start. One bump along the path can put him/her right out of the pilot's chair and into the navigator's seat.
After all of this thinking, I would advise your friend goes to the nearest air base whether it's active, guard, or reserve. Call first to see if you can setup an appointment to have a short meeting with someone in flight ops, or another pilot flying a desk on a certain day. On guard bases, try to avoid training weekends as they are quite busy. But most have staff on duty every day of the week as well.
Have your friend prepare a list of questions to ask, and be prepared to take notes if needed. Also, if the local air base has a type of aircraft that he/she doesn't want to fly, it shouldn't matter. All of these folks took basic flight school together before being divided up later.
In short, I wouldn't go to see a recruiter first. They're doing their job getting as many young people signed up for a career (any career), and most likely won't be able to answer more specific questions with first hand knowledge.
Whatever he/she decides, wish them luck from this old USAF & Air Nat'l Guard sergeant, who tried his level best to keep his feet firmly on the ground whenever possible!
