OK, so developing a "high-tech" uniform with special material and pockets for cell phones sounds like something an authoritarian government wearing tin foil hats might dream up. But the jury is still out on what real effects electromagnetic radiation from the devices might have on children.
According to the Russian National Committee for Protection Against Ionizing Radiation, in children who use mobile phones, should expect a weakening of memory, decline of attention, irritability, sleep violation, reducing the critical alert. [Translated through Google]
Sounds like normal teenagers to me.