What age are we talking about? Perhaps the 1950s

A Seattle-area high school confiscated and shredded copies of the creative writing class's literary magazine when they discovered one poem discussed a first sexual experience. The poem's 17-year old female author "said her verse was about the pressure teenagers face to have sex and the disillusionment that can follow." Despite this seemingly responsible approach, the district ruled the poem was... wait for it... "not age-appropriate."

Uh, if they're old enough to have sex, they're old enough to talk about having sex.