Sex and relationships education (SRE) aims to help young people learn about sex, relationships, emotions, and sexual health. Effective SRE programs use participatory teaching methods, focus on building skills and norms rather than just providing information, and aim to reduce risks. There is no evidence that SRE encourages earlier or increased sexual activity; it may actually delay sexual debut. Programs promoting postponing sex and safe sex practices are more effective than those focused only on abstinence. Schools and parents should work together to address young people's development through SRE. Barriers like disability stigma, lack of privacy, and inaccessible services make SRE especially important for young people with additional support needs.