The four-hour lessons for students aged 11 to 16 are designed to help develop their relationships and sex lives. This year, for the first time, 100,000 students will take part in training courses in the Wallonia-Brussels Federation. Muslim organizations fear the “oversexualization” of children and violently oppose the lessons. Investigators have not yet been able to officially confirm the link to the series of attacks on schools – but politicians are firmly convinced of it.