The increasing number of children on the move within complex mixed migration flows has placed age determination procedures at the core of migration management.These children are often unaccompanied or separated from their primary caregivers. With limited access to birth registration in their countries of origin, they are rarely able to produce evidence of their age. In fact, UNICEF highlights that, in many countries of sub-Saharan Africa, over 64% of births continue to go unregistered. Efforts to effectively manage migration should not overlook the limited availability of birth registration in countries of origin, nor should individuals’ lack of documentation be perceived as a deliberate attempt to...