PDHPE (Personal Development, Health and Physical Education) should be taught in primary classrooms because it provides a balanced education and helps students develop self-esteem, decision-making, and problem-solving skills through physical activities. PDHPE covers important areas like physical and mental health that are not addressed in other subjects but are essential for students. The PDHPE syllabus aims to support students' holistic development and contribute to an improved quality of life through teaching lifelong skills for active, healthy living.