More broadly your advice is very out of touch with modern life. Don’t let them go to the library? Or summer camp?
How am I supposed to supervise them 24/7?
Every actual expert I’ve spoken to has said “do what you can without driving yourself insane, and understand you’ll fail.” None have advised me to simply “do not give them access to the internet.”
I already forbid it. There are too many damn workarounds (school chromebooks).
Here’s the funny thing - I totally trust my troubled adolescent with devices that log history. Never a problem.
So that, combined with advanced cooperation on parent imposed filters should work fine.
And best part - none of this impacts adults! Don’t turn on immutable history, and don’t turn on white listing! Easy peasy! They can be off by default (and should!) so adults don’t have to do a damn thing!