Say you were a guardian or parent and get to decide when a child can get a phone or use a computer and get internet with it. If you wish you can also install software and change router settings to what you see fit.
Some parents decide to forbid the internet completely, others are more relaxed. Some go the helicopter route, and some do not care whatsoever what their kid does online.
What is your policy on letting a child use the internet?


Education education education.
Explain how the internet works. Explain companies. Explain evil intent and malicious behavior.
Imo, if you put your child under surveillance that’s not the right way. If bad things happen despite good education, fine, introduce limits and guardrails.
Don’t do things you wouldn’t want for yourself. Be consistent.
Basically, do good parenting.
As much as I hate the idea of exposing kids to the ideologies and mass propaganda of the internet, I hate the idea of incompetent adults even more. Plus, exposure builds resistance to some extent. How are they gonna learn to think for themselves if they haven’t seen a wide range of views? Also, do you want your child to fail out of college the first time they play a video game? Or only start learning to code in their twenties? if ever since they won’t think of a computer that way.
No way, if I was gonna have a brat, the little bastard would be damn competent at everything.