I get what you’re - and others - are saying.
As everyone discussed a few years ago when Apple was rolling out its own CSAM solution could be easily manipulated.
I don't believe though that this request is asking Google or Apple to ‘phone home’. They just want it to work like an on device ad blocker.
What you’re talking about though, doesn’t stop young people from taking certain photos & then showing it to other young people in their photo library. Ditto on their laptop after school.
And there’s always going to be parents who don’t understand how to use ios / android parental controls.
I know you won’t believe me here, but for people who aren’t that interested in tech, both iOS and android are getting pretty complicated and unwieldy now.
And for those who are worried about the very concept of their phone snooping through their stuff.
Well, we are all on the verge of allowing local on device LLM assistants to do just that & most likely we will not have a clue about how they are built and what they will be actually doing.