Correct. A (non-admistrator) user of a Android cannot disable software. This too also applies to a Windows Limited user.
Pi-Hole + packet inspection + whitelisting + switch routing = universal lockdown against every known form of data obfuscation. This is now a server machine.
Windows has Limited User account, Family Safety in the control panel, and a advanced Firewall. 3rd party Net Nanny was\is a net filtering\alerting software that had visiting-server-side support in case the kid knew how to onion route or obfuscate a url or ip.
Androids can install firewall software like PersonalDNSFilter, AdGuardDNS, or RethinkDNS (the premium version creates for you a custom dns server -- no software needed.
Androids have profiles built-in, that act like windows user accounts.
Pi-Hole is a hardware thing you attach to your network.
There should be plenty more.
Yup. This. I'm in California and this is not even a topic. This is not even in the local news. It's as quiet as: the bullet train project, the gigantic water pipeline for the south project, the drought solution, the power grid solutions, etc. But, boy, the amounts of money that it blew thru.
The best analogy I've heard for this, to help understand why it's a 'null' {i need a better word here} topic was said as... "Parents to be doing the parenting, versus, a government doing the parenting and unbeknownst applies it to everyone ". And it is speaking of widely available tools that are already available such as parental controls in routers, devices, etc.
The analogy discounts "little hackers" or minors that intentionally will break laws to get what they want; in which then no "age verification" service (made by anyone) will work in practice.
Switch routing is network hardware that manages only one side\subnet\layer of clients -- it's like one layer of an onion will only ever see the next layer.
This reddit thread cites a real-world parent's example of packet inspection solutions...
https://www.reddit.com/r/selfhosted/comments/piarcj/selfhosted_parental_control/