> The problem with that is it generally requires a central point of trust.
The problem with it is that the people who want to use a central point of trust as a chokepoint for censorship, surveillance and monopolization keep claiming that this is required when it isn't.
> Sure you can allow multiple points of trust, but for the unskilled user, that means that the little lock symbol becomes unreliable (or whatever)
The premise being that if you have a monopoly then ordinary people can trust it. Only that isn't the case. A monopolist not only can be just as malicious or incompetent as any of the multiple players in a competitive landscape, they're more likely to be because the lack of competitive pressure allows them to be more abusive and complacent and more capable of capturing the government.
> under a certain age, if they took photos or videos of other kids, that makes them liable to be on a list, for life
That seems like a problem caused by the law. Why is it possible for any actions taken as a minor to cause someone to be put on a permanent list when we recognize that minors aren't mature enough to be held responsible for that?
> Now imagine not being able to get that photo back.
Now imagine what would be necessary to get it back. It's on some other person's private device. Either you invade everyone's privacy and private communications to check if they might have it or be privately sharing it, or they could be. The cure is worse than the disease.