I always find that Ruby limits herself in all her interests - whether it's on purpose or not. She suddenly likes camping, okay... but doesn't do it without parental supervision and/or outside of her own backyard. She suddenly gets interested in Victorian social history, okay... but doesn't reach out to any history-based YouTubers for collaborations or show a wider understanding of the context in which the majority of that social history applies. She loves books, great... but will make a beeline towards YA and children's books whenever possible. I could go on. Her definitions of her interests are so rigid, there really isn't room for much creativity or nuance.