RIO DE JANEIRO, BRAZIL - MARCH 30:  Robson  Mattias, whose family raised him on the streets, poses while sitting in the Centro neighborhood on March 30, 2015 in Rio de Janeiro, Brazil. A Rio government report from 2013 stated that 5,500 people live on the streets in Rio, not including those who live in shelters or lack stable housing. Close to 40 percent of the street dwellers in the study were found to lack identification, limiting their access to public services.  (Photo by Mario Tama/Getty Images)