How to handle top-level/index pages in structure sections? It seems that currently if you want to avoid the main "about" page at the top of an "about" structure having a slug of /about/about/ then the approach people seem to take is to create an About page as a single, and a separate structure for subpages.

An alternative approach that occurred to me is to give the structure section a URL of just {slug} and then make everything a child of the "About" entry. Is there any particular disadvantage to doing this though?

I can see that it potentially allows URLs from different structures to clash (if someone creates a new top-level entry in a structure), but my feeling is that if I have to choose, the possibility for users to mess up the structure seems less bad than the probability that the "separate single + structure" approach will be confusing for users. Is there some other disadvantage that I'm overlooking here, though?﻿
I recently setup a structure which contains (almost) every page of my site. When I set it up, I specified only {slug} as the URL.

So far, it's working fantastically! And that's with about 30-40 pages created in the structure (some nested within others).