One more reason I like the Netherlands. The closest we come to that in the US is the Unitarian Universalist sex ed program:
UUA: Our Whole Lives
"Lifespan Sexuality Education Curricula
Our Whole Lives is a series of sexuality education curricula for six age groups: grades K-1, grades 4-6, grades 7-9, grades 10-12, young adults (ages 18-35), and adults."