I have kids, 2 boys, the author failed to explain if she has kids or not. I believe the overprotective reason is valid. It's very common to hear about child trafficking, kidnapping and missing kids. The reality is that this exists and we need to accept it first. If there is a probability of something happening to your kid, you want to take all measures possible to avoid it, at the end they are the most vulnerable people in our society which we need to defend & protect at all costs. I agree with security at school that there is no reason to observe kids for joy, i would see them and continue my way, just the thought of it seems creepy.