In 15 years, the lifespan of the 2030 Agenda, the 10-year-old girl will be 25. Will she still be left behind? Or will she be enjoying her human rights and well-being, and exploring the many avenues open to her, knowing that, when her own daughter turns 10, she will experience more of the same? Only the latter scenario will allow the world to truly claim that it transformed the course of development and met the challenge of the Sustainable Development Goals. Much depends on the choices we all make, from parents to policymakers, educators to health-care professionals, economists to entrepreneurs, journalists to community leaders. Today's 10-year-old girl is on the way to her future. And her future is our own.