Anyone who writes in verse gets used to answering this question: “Why do you write in verse?” There are a lot of reasons of course, but one that I often talk about concerns the depiction of edgier material in books aimed at young readers.
Like it or not, our kids take drugs, self-harm, think about suicide, get abused, suffer from mental illness, are victims and perpetrators of violence, and lose friends. All of these dark topics are suitable for young readers, but may need to be presented in subtler ways than in adult literature. Verse is a way of achieving that. Its reliance on metaphor, sparse language, and contained form allow these issues to be explored without overwhelming the readers with heaviness.
Take sex for example. Not a dark theme (it’s fun and healthy!) but one that frequently raises eyebrows in relation to books for young readers. But again, like it or not, young people, teenagers, even pre-teens have sex drives and sex lives. Many YA books have a “fade to black” policy when it comes to sex. Characters might have sex, but rarely are the scenes depicted in any detail.