Presumably it also does it for free?
Fully customisable commercial web filters such as Forcepoint cost considerably more than most families would be willing to pay.
Frankly, sadly, changing a home router's DHCP server to hand out a different DNS server address is going to be well beyond what most parents are capable of. That's if the router even allows that kind of config change. And mobile devices operating on a cellular data connection, or devices that might operate from WiFi outside the home are another problem.
I suspect a significant chunk of parents have no idea how to go about restricting what their kids can access. Especially given the amount of material that they might want to block that sits on multi-interest platforms like Twitter - which apparently has a ton of porn on it, but also loads of musicians, actors etc. that kids would want to get content from.
Biting the hand that feeds IT
