Toc for section

Hello,
in the documentation on https://www.getzola.org/documentation/content/table-of-contents/
We speak about section.toc. But, I’m wondering it should not be sections.pages, because for me section.toc is empty.

What I try to achieves is listing all pages and subsections inside my section, in my index section page

Section root page can have their own content and their own ToC, outside of any page sub-pages whatsoever.