In the future I may add an "Is Clickable" property to a page so it can be just a container, but currently all pages are clickable. What I do on container pages is enable "Show Child Pages Site Map", so if the user clicks it they just get a menu of child pages. To me this is actually friendlier than having it not clickable.
For example, the Documentation page has not content system features on it, but is just a container page that shows its Child Pages like a site map because I checked "Show Child Pages Site Map" in the page settings.
Best,
Joe