UN Convention on the Rights of the ChildChildren's version
Here are important rights that are directly related to creating Children Architecture.

1. Definition of a childA child is any person under the age of 18.

2. No discriminationAll children have all these rights, no matter who they are, where they live, what language they speak, what their religion is, what they think, what they look like, if they are a boy or girl, if they have a disability, if they are rich or poor, and no matter who their parents or families are or what their parents or families believe or do. No child should be treated unfairly for any reason.

3. Best interests of the childWhen adults make decisions, they should think about how their decisions will affect children. All adults should do what is best for children. Governments should make sure children are protected and looked after by their parents, or by other people when this is needed. Governments should make sure that people and places responsible for looking after children are doing a good job. 

4. Making rights realGovernments must do all they can to make sure that every child in their countries can enjoy all the rights in this Convention.

31. Rest, play, culture, artsEvery child has the right to rest, relax, play and to take part in cultural and creative activities.