Abstinence is when someone decides not to have sex, maybe until marriage. It's the BEST way to avoid pregnancy, HIV/AIDS and Sexually Transmitted Infections(STIs).You do not need to practice sex and there's no school where they teach it. When it is your time to have it you and your partner will discover what is best for you. There are no health disadvantages to abstaining:it's NOT true that your genitals disappear if you abstain for long. Your vagina/penis is going nowhere, even if you abstain for life!
Attribution: Straight Talk Foundation & Marie Stopes