In 1991, the approach to puberty education varied drastically between these networks. While the Flemish community had begun integrating "relational and sexual education" (relaties- en seksuele vorming) into the curriculum, the Catholic network emphasized "relational formation" focused on marriage and family values, often treating puberty as a biological event within a moral framework.
This was a landmark study conducted in Flanders (the Dutch-speaking region of Belgium) by researchers at the and the University of Antwerp (UIA) . It was part of a broader European initiative. In 1991, the approach to puberty education varied