that's only good for the devices using your internet though no? not if they have data.

I install a configuration profile on their devices which forces NextDNS regardless if they're on my wifi, LTE or their friend's wifi.

https://apple.nextdns.io/

why would you give a kid data? (as in cell data, presumably) I guess, to be able to helicopter them from anywhere...

Apple devices would still have parental controls in that case, though, I think?

Cellphone companies should really step up, here.

Even if they don't have data ... they may use someone else's wifi. NextDNS configuration profiles address this - https://apple.nextdns.io/

oooh, this is good. I am bookmarking this for the future (my son is only 3.9)