Whether a site or service is directed to children is judged on a multi-factor test (subject matter, visual and audio content, use of animated characters or child-oriented activities, age of models, presence of child celebrities, advertising directed to children, and competent empirical evidence of audience). A mixed audience service is child-directed but does not target children as its primary audience and must use a neutral age-screening or determination method before collecting personal information.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.