Maybe she didn't much care for them because they were never big in her family. Sure, her mother would sometimes bake a cake to celebrate if she wasn't too busy with appointments in their dental practice that day. Once she was away at Hogwarts it was more often than not forgotten. So close to the beginning of school term, it was easy to forget. At first, she struggled with not feeling petulant about the date being ignored. Eventually, she tried not to think about it. There were more important matters to concern herself with than whether or not the people around her knew it was her birthday. So what if she'd managed to survive another year of living? It seemed like such an insignificant reason to celebrate.