Or, hear me out, let's not waste time developing useless and harmful surveillance technology.
None of this is required to safeguard children, and it does a bad job in its attempt - while doing a great job of scanning every user's face and documents.
Parents should be responsible, educated and empowered with tools to control their kids' activities online. Networks and mobile devices can relatively easily be configured to restrict and monitor activity, especially for young children where you might want to choose what to allow, rather than to block. There will be ways around them, but if that 1% is motivated enough and knows they shouldn't, I think that's fine.
Yeah well if you think you're too smart to be influenced by propaganda, you're wrong. Especially in the age where it's not big posters anymore but subtle word choices and bots