Girls play on swings outside a school in the Mennonite community of Buenos Aires, Janos, Chihuahua, Mexico April 29, 2015. From schools to general stores, almost everything the Mennonites need they have built for themselves within the confines of their own communities. Mennonites generally finish school by the age of 12. Boys and girls sit separately in classrooms, just as men and women do in church pews on Sundays. REUTERS/Jose Luis Gonzalez