If we compare the 1991 "exclusive" model to today, the differences are stark:

The original 1991 documents—the watercolor charts, the beetroot demonstration script, and the "You are not dirty" leaflet—are now preserved in the Archive of European Sexuality in Ghent. Historians note that Belgium was, for a brief moment in 1991, the most progressive country in the world for puberty education.

The onset of puberty marks a significant period where young people begin to navigate evolving social dynamics. Comprehensive education during this stage shifts the focus from biological changes alone to include the development of interpersonal skills and the understanding of healthy social connections.

Many teen romances start in mixed-gender friend groups before pairing off. Healthy relationships are built on the same skills as great friendships: trust, respect, and shared interests.