Since adopting we have always refused permission for school etc to take photos of our DC. This is becoming a bit of an issue now as they are in yr 2 and 3 and are starting to stand out amongst peers because if this. They have asked why they can't have their photo taken with classmates and we've explained it as not wanting their picture in the internet but haven't said why. How have others explained this without scaring the child/ten? Any advice welcome