>"The platform receives only a yes-or-no response. Issuance and verification are handled by separate entities. The proof provider is not told which service the proof was used for."
And yet you still have to trust that this system doesn't get back-doored by three-letter agencies. Because if they do, then, suddenly, they have WAY more power than before.... now able to track where EVERYONE goes. And that is down to the individual level with confidence, not just an IP address or guess.
This gives the "yes/no" entity the power to completely shut down any person's ability to do anything meaningful online if they are able to match a device to a certificate with other means, and directed to do so by the government or some other powerful organization.
And it gives this cabal the ability to shut all sites/services out of the market they don't "like." Requiring they all use this yes/no entity and then refusing participation. (Granted, they kinda already have the option of mucking with DNS and ISP's).
And how are open source projects going to be forced to use the system? And why should they? Perhaps you can get coverage by the major sites and devices, but it won't cover the freedom-loving projects nor the shady sites/projects who simply won't use the system. Minors will have full access there. And all it takes is recompiling an open-source browser, IM, VOIP client, whatever, to issue a bunch of vetted "adult" certificates from a nefarious collection of them online, and now you have full access. And you also set off a war between legit users and the "system" trying to blacklist compromised certificates/identities... which, meanwhile, RUINS the lives of those who had their certificates/identities "stolen."
I am certain there are other issues smarter people than me could find with this arrangement. It could be worse, for sure, but...
Why not stop this madness and focus on PARENTS? Firstly, not giving unrestricted devices to minors. Secondly, having PARENTS be in the driver's seat to control what sites/people/services are allowed for their children. Thirdly, supporting a voluntary age appropriate tag for sites/systems that can be used by local device whilelists by the parents. And fourthly, changing the social norms that it is not OK for minors to have unrestricted devices anywhere. Then adults are not impacted at all. And most of the burden falls on the actual responsible party, who should have intimate knowledge about what is or isn't appropriate at their children's developmental stage.