Oh please, at my (and Ecrofirt's) high school, you wouldn't be able to have a pic like that in the yearbook either. Not because of the weapons, but because the picture had to be a headshot. No body shots, no chin resting on your hand, nothing like that. Just a headshot. Lame.
If this kid can submit a picture of himself leaning casually against a tree or something, without shitty armor on, he should be thankful he at least gets to do that.
Oh, and his mom sucks.