Sex education should be taught in schools for three reasons: 1) Improving sex awareness by providing students with correct information about sex from trusted sources, as many learn about it unsafely online or from peers. 2) Concerning teenage pregnancies, as sex education encourages responsibility and over 750,000 US women under 20 get pregnant annually. 3) Protecting children and teenagers from sexually transmitted diseases, as those aged 15-24 account for over 9 million new STD infections per year in the US.