They are also User Agents, in that they interface with the user, process input from them, and pass it to the network. But that network isn't based on electrici

They are also User Agents, in that they interface with the user, process input from them, and pass it to the network. But that network isn't based on electricity and does not primarily transmit information, so it is not the kind of UA to a network, we want to introduce parental controls for.