There is increasing global attention on the health and wellbeing needs of young people. Preventive and proactive approaches will likely lead to the clearest dividends for young people, their own children and wider society. A brief overview of the international context for young people’s health care is given. As well as influencing policy, there are important roles for the health care team, including psychologists, to influence the organisations they work within, advocating for the needs of young people and their families. This is the focus of this article. The concept of developmentally appropriate health care (DAH) for young people is explored. It could help when planning services and approaches that respond to the needs of young people. Building relationships is likely to be key, to connect with young people to help them make health and wellbeing decisions, and provide individualised support. The ‘connectedness’ research could also be helpful in looking beyond the health care evidence. A key challenge for psychologists and their multi-disciplinary health care colleagues, in practice and research, is to move away from a reliance on binary, easier-to-measure health and wellbeing outcomes and, instead, find ways to promote and measure developmental outcomes that are meaningful to young people and their families.