This page represents a key topic in the space. There would be many child pages, on key subtopics. Each would have the page title embedded, as this page does, at heading level one.
A page like this should not have a lot of content, and should have no subheadings. If you use subheadings here, and you make a PDF of the pages to create a "book," the headings in the "book" will not be in sequence.
A page like this optimally says only "The following topics are included:"
{children}
The children macro lists the pages gathered by the topic page. Continue to Example Two to see.