There's always a few threads this time of year complaining about schools that have a 'no photo' rule at the nativity play.
Some children need to be protected from having their image spread around, because there are unpleasant people trying to find them. This was one.
BBC link
Obviously there's no suggestion that it was a school photo that helped this particular abuser to track down this mother and child. But there are children in UK schools today who are at this kind of risk. I just don't get why people think their right to bob about taking blurry pictures/video during a performance trumps another family's safety. Take your picture of your child in costume before/after the performance. You don't need to record every second of it.
We didn't have video cameras when i was a child and i am really not scarred by not having a recording of my second-angel-on-left debut.