While gender transition has always existed among adults, the emergence of gender dysphoria in children and adolescents calls for the utmost vigilance. How is it acceptable for minors not yet mature enough to vote or have sexual relations to consent to treatments that will suppress their fertility and irreversibly alter their body ? What are the medical consequences of hormones, or the psychological and psychiatric consequences ? Why are treatments and surgery fully funded when gender dysphoria is no longer classified by the WHO as a disorder ? Why is detransition still a taboo subject ? How has transgenderism entered the political debate ? All these questions and answers shed light on the risks and pitfalls of gender transition in minors.