My child goes to a charter school in Arizona. Their policy is that phones are stored in lockers. If a kid is caught with their phone in the building then the ph

My child goes to a charter school in Arizona. Their policy is that phones are stored in lockers. If a kid is caught with their phone in the building then the phone is confiscated and brought to the office. The parents are notified and the phone is only given back to the parent. I don’t understand why something similar couldn’t be implemented in public schools thus requiring no state law.