So what's next?

Do they also need to have an age-verified Facebook account?

Plus an attested age-verified operating system on that phone?

Are they allowed to use GrapheneOS or do they need to use only the vendor's stock ROM image?

Is it OK if they turn off surveillance on the device or is that required too to "participate in society"?

I know you're joking but the future will be: No. Yes. No, stock only. No, surveillance required.