We have been contacted by a colleague who works in Nagpur, India. She told us about the work her NGO is doing with urban spaces. The needs (rights) for children to play can be partly met by making parks safe, pleasant and used. The NGO has worked with the community to upgrade eight parks. Some of the parks have also had further work to make them accessible for disabled kids. This sounds like a great development field which is new to us.
More info: http://www.esafindia.org/livable-cities-india.html and https://livablecitiesindia.wordpress.com