Pages and taxonomies such as Categories can be hierarchical – this should be showcased in the table/list layout. Indentation is one way to do it, but it's worth exploring alternative approaches.

Also to consider: the display of children when the parent is not visible, e.g. in search results, or across pages. How is the relationship with the parent(s) communicated in these circumstances?

In the future it might be nice to have an expand/collapse affordance to toggle the visibility of children as well.