Despite this increased investment in intervening early, however, in the majority of OECD countries the funding and resources available for child and adolescent mental health are yet far from those dedicated to adult services (OECD, 2014). While in some countries concerns over privacy or parental consent may hinder the integration of (mental) health and education systems (Evans, 1999) many OECD countries have implemented school-based mental health programmes in recent years due to its several benefits. Educational systems reach the vast majority of children and adolescents and provide a non-stigmatising, universal setting for prevention and targeting of children who experience (or risk developing) mental illnesses. Delivering mental health services through the school system can also contribute to solving some major financial and structural barriers that may prevent children from seeking or receiving services due to mental health concerns.