Try to start an ISP and/or become a public Certificate Authority.You will quickly run into steep requirement (admin and financial). To buy IP address space, get peering partners for traffic transit, hosting dns, hosting email (good luck getting mail delivered to the big providers without having your own users verified via mobile number). Try to build a mobile app, or phone or runtime - all the key signing, binary signing involved, the entire security model from hardware/firmware, boot, memory access, runtime safety and on and on. Then there are the intelligence agencies and various countries surveillance laws, information laws.
If you add it all together, we are already monitored 100%. They want to linked and prove the monitored device is linked a certain human beyond a doubt. Email, Mobile, Full names are not enough, they want your biometrics too. They want you serial numbers of devices and mac addresses of networked devices and SIM cards. They want it all.They want your children to have devices with camera, mic and gps trackers in. Your kids will be part of kompromat before they reach adulthood and some of them will be blackmailed by government agents and other bad actors throughout life. Some kids will be trafficked with the help of all these tech solutions, because they know exactly where your kids are at every moment.
Add home assistants, smart tv's with cameras, toys with cameras, outdoor cameras, shopping mall cameras everywhere, in-vehicle cameras and mics. Bluetooth beacons everywhere.
Add it all up and ask yourself, is this truly about child safety? Not at all. I'd argue they would be more exposed. If they wanted children safer, they'd recommend parents and schools to 100% remove kids from the internet or devices with public internet access. Why does a 10 year old need to know how to join a teams meeting and being comfortable on a video call?
Not to mention the access to weird porn and gore sites that WILL traumatize a young mind.
Then contemplate what all this data will be used for in the hands of extremists, nazi's, dictators, the effects on free speech & journalism, the propaganda machines reach on you and your family.
The internet is 10000% cooked and no longer open. It's better to disconnect from it at this point.