Re: Think of the children?
"1. Forbid children taking smart phones and similar devices equipped with cameras into schools. Permit simple voice only telephony devices."
But the kids are more tech-savvy than the grown-ups. They can make it look like a voice-only phone when it really isn't after a magic knock or the like.
"2. Persuade parents to allow access to devices equipped with cameras and microphones only in the communal living room."
Until it's found that that alone is dangerous for miscreants trying to case a place.
"3. Inform parents of dangers emanating from setting up Internet connected security cameras in bedrooms and playrooms."
And if they can't learn?
"4. Greater emphasis on personal security (Internet and generally) within school curricula. Explain why sharing intimate images can lead to distress and worse, even with close friends."
See #3 combined with peer pressure.
"5. Rejig for the Internet era the long standing advice given to children not to talk to casual strangers. Reiterate this frequently."
And if they reply, "But he's not a stranger."?
"6. Police and other agencies to move away from the relatively simple low hanging fruit concerning circulation of illicit images and concentrate effort upon tracing original creators of images and persons using the Internet to entrap children into physical sexual contact."
Trouble is, many of the savvier ones hide behind hostile sovereignty.
"7. Imbue the public with understanding that a totally risk free environment with regard to almost all hazards in life is unattainable and of necessity for protective resources to be prioritised according the benefit offered."
Again, see #3, especially if anyone taking that stance loses the next election...