Many of these define her subordinate position at home and elsewhere (Population Reference Bureau, 2016). Harmful norms result in parents thinking that school is not for girls, in educators steering girls into low-paying “feminine” jobs, in health-care providers refusing to provide reproductive health information and services, in police choosing to believe a parent who claims not to be abusing a girl over the testimony of the girl herself. Failing to recognize the power of norms to shape behaviour can undercut the effectiveness of all interventions otherwise aimed at greater well-being for the 10-year-old girl.