 Many schools now provide safer sex education to teen and pre-teen students, who may engage in sexual activity.Since some adolescents are going to have sex, a harm-reductionist approach supports a sexual education which emphasizes the use of protective devices like condoms and dental dams to protect against unwanted pregnancy and the transmission of STIs.This runs contrary to abstinence-only sex education, which teaches that educating children about sex can encourage them to engage in it.