My parents treated my device access something they had to keep a keen eye on. They were good at manually making sure I wasn't sitting around having my brain rot, but their spying on what I was doing into my teens left me with some trust issues.
They briefly tried to use technological solutions to control my access and monitor me, but all that served was to make me very good at circumventing them. Outsourcing parenting to a computer program doesn't work, and kids notice when you try.
I use PiHole+Unbound in a podman quadlet, and give it its own macvlan. Works great for me.