Concerns about the mental health and well-being of children and young people have been articulated in health and education policy fields as a call for closer working between schools and providers of mental health support services. Drawing from a Scottish study, this article explores issues of access, when mental health initiatives are sited in formal educational settings. In particular, it focuses on the implications for the agency of children and young people seeking support from those services when and how they choose. The study argues that over-reliance on teachers as the main referral route to service influences what is deemed to be a problem, who is thought to need support and how the interventions are viewed by the children and young people. Alternative approaches are discussed, which offer opportunities for children and young people to explore the available services and make their own choices about their level of engagement.