I've let her play around with Google Docs before. But what I really wanted was something like Creative Writer that is more kid friendly. I used Gemini (sorry) to suggest some software and it suggested "Book Creator" which is intended for schools/teachers. I signed up as a fake teacher and added my kids as students and they did create some really creative books, importing images, and adding their own drawings. But it's still missing that kid-friendly vibe like Creative Writer.