From the barber-surgeons of the Middle Ages to the digitally enabled clinical interventions of today, the role of nonspecialists in delivering accessible health care remains relevant and important. Their contribution in developing and supporting appropriate interventions and care pathways in the community can make a big difference for the overwhelming majority of children and young people with diagnosable mental health conditions who are not eligible for specialist treatment or do not seek help. Even if resources for specialist services were unlimited, there are independent benefits in involving nonspecialists in mental health care, albeit not without limitations and concerns. The natural shift over time in the boundaries of specialisms, the omnipresence and omnipotence of digital media in our lives and the vision of ‘no wrong door’ for service users, mean that it is not a question of whether, but of how, nonspecialists should be involved. We need to get past the point of considering them just as alternative providers of mental health interventions and services. Instead, they are best placed to protect children and young people’s mental health through ubiquitous everyday actions, which counter the negative and maximise the positive elements in current practices, environments and interactions that influence families and communities.