User blog comment:Thomas.lopezalmenas/Shipping~ ^3^/@comment-10990964-20140221193911/@comment-3146930-20140221202649

They aren't really in High School. It is closer to assume that they are college level. Even if they are only 17, once they graduate from Beacon they will be full Hunters. However just to get into Beacon, you need to spend time in a Combat School and get accepted by Beacon. So Signal is like a Combat-High School and Beacon would be Combat-College. However the ages in relation to our world is just a bit different.