This article explores the dramatic shift in from the landmark reforms of 1991 to the continuously updated frameworks of today. We will dissect why 1991 was a turning point, how the content has changed, and what modern Belgian schools are teaching children about growing up in a digital, inclusive age. Part 1: The State of Play in 1991 – The "Silent Revolution" In 1991, Belgium was a country divided not just by language (Flemish vs. Walloon communities) but by ideology regarding youth and sexuality. Prior to this year, sex education was largely the responsibility of parents or religious institutions. In Catholic schools, the message was often abstinence and shame; in secular schools, it was limited to basic biology. The 1991 Law: A Legal Earthquake On an international level, 1991 was the year the World Health Organization (WHO) began pushing for "Health-Promoting Schools." In Belgium, the political landscape shifted. The 1991 law on sexual education (officially part of broader health reforms) did not mandate sex education nationwide, but it did remove legal barriers preventing schools from teaching it comprehensively.

Now, fast forward to the updated curriculum of 2025/2026. The same teacher shows a tablet displaying an interactive 3D model of the endocrine system. Boys and girls sit together, discussing consent, digital safety, gender identity, and emotional regulation alongside wet dreams and menstruation.

Imagine stepping into a Belgian classroom in the autumn of 1991. The Cold War has just ended, the first website is about to go live, and a teacher stands before a group of restless 11-year-olds. On the overhead projector is a grainy, black-and-white diagram of the reproductive system. The word "sex" is whispered, not spoken. The lesson on puberty is separated: boys in one room, girls in another. The message is clear: this is biological, clinical, and slightly embarrassing.