show post id on manage pages and manage posts

Why is it that the id of the post (page, too) isn’t shown on the actual manage Pages or manage Posts admin page? Sometimes all you need it the ID. This seems obvious to me, but is there a reason it isn’t a column in the table there?

and why aren’t pages and posts (on their respective manage admin pages) sortable by clicking the heading on top of those columns? I’d love to sometimes see them sorted by ID, by name, etc

Is there some compatible plugin that would rectify this?