A few private institutions have them
Military academe's and even some high schools have them. Just dont grow your hair past your shoulder and your Kosher.
Its hair, it grows back later, obey the rules
I leave my hair at 3/4 inch because I don't need to comb it or use a ton of shampoo, I can wear hats without it getting mucked up and when its hot out its easier for me to keep cool
I also wear it short in support of my friends who are in Basic and the other is shipping out for Afghanistan. And When I get done with college I will be going over with them and preparing myself early on will help me later. I wont go through the same amount of shock when they shave off my hair the first night, I plan on going in with 1/8 inch nubby hair so they cant call me a skinhead and they cant call me a hipppie.