Give me access to yours and your childrens' phones, I suspect that you or one of them
may be a pedophile. Don't want to? Too bad, here is the law that says that I can get it all anyway. Don't worry, I'm a good programmer, I won't see it myself, I'll let one of my algorithms do it for me (I can't tell you how it works though, since you may use that information to hide something from me)! I pinky promise that neither I nor the other strangers viewing your or your childrens photos are pedophiles!
Is that the world you want to live in?
Why should everyone suddenly have to trust the discretion of complete strangers?