Hello, Sevens is correct that I'm deaf.
Probably everyone know that I really wants to join the United States Marine Corps as an infantry, but I can't 'cause I'm deaf. I'm a CIs (Cochlear Implants) user, and CIs won't let fool the recruiters, unfortunately.
Tell your son, that he isn't only deaf person that wants to join the military.
By the way, welcome to the forums.