Universal primary education aims to ensure that all children complete primary schooling between ages 6-12 by 2015. It seeks to improve quality and access to education regardless of gender, location, social class, ethnicity, disabilities or background. However, 57 million primary-aged children remain out of school globally due to factors like remote locations, gender biases, poverty, and costs. Ensuring universal primary education benefits societies by empowering girls and reducing health and social issues.