One of the quieter victories of the GAP process was procedural, and it belonged to the Older Persons Partner Constituent Group. Approved at the Third Plenary in Prague in March 2016, the group formed because an existing constituency did not quite fit the experience of older city-dwellers.

The case was straightforward and, once stated, hard to argue with: nearly 60 percent of the world's older population lives in cities, and the norm is increasingly aging in place rather than moving to care. A New Urban Agenda that is serious about inclusion cannot treat that as a footnote.

The group's arrival, alongside the Persons with Disabilities PCG approved a few months later, is why GAP grew from fourteen constituent groups to sixteen. Each addition widened the definition of who counts as an urban stakeholder, which is, in the end, the whole point of the Partner Constituent Group structure.