It could be due to political power struggles. The children might have been seen as threats to the queen's hold on power. Or perhaps there was a curse or prophecy involved that led her to believe it was necessary.
Maybe the queen was mentally unstable or under some evil influence that made her do such a horrible thing.
One possible reason could be overconfidence. Rich kids might feel invincible because of their family's wealth and status. So, they may engage in dangerous behavior that results in someone getting killed.
One possible reason could be for a medical emergency. For example, if she had some kind of injury or discomfort in that area and needed to quickly check or treat it. Another reason might be if she was about to take a bath or change into more comfortable clothes at home. Maybe she just wanted to feel more relaxed and free without the constriction of underwear.
Maybe she had a medical issue like a weak bladder. Sometimes, certain health problems can cause involuntary urination.
One possible reason could be psychological. As she grows up, she might start to imitate her mother unconsciously. For example, she may adopt her mother's mannerisms, like the way her mother talks or gestures. Another reason could be environmental. If she is constantly surrounded by her mother's influence, such as living in the same house with all her mother's things around, she may gradually transform in some ways. Maybe she starts to take on her mother's role in the family, like taking care of younger siblings just as her mother did.
Maybe the story is too personal or contains some secrets that Queen Elly doesn't want to be made public. It could also be that parts of the story are not suitable for a general audience, or there are elements in it that might cause controversy.
Maybe the story contains some sensitive information that Queen Elly doesn't want to be spread widely. For example, it could be about personal family matters or some political secrets that are better left unsaid.
It could be part of a game. Kids often come up with strange and fun games, and tying someone's toes back in a harmless way might be one of those creative games.
Mental illness can be a major reason. Just like Andrea Yates who had postpartum depression and psychosis. These mental conditions can distort a person's perception of reality and lead to such tragic actions.
It could be due to a lack of experience in storytelling. Children are still learning how to structure a story, so they might jump from one idea to another without a clear transition.
One possible reason could be that in some traditional or strict educational settings, the girl might view spanking as a form of discipline that she believes she needs for her misbehavior. Maybe she has a sense of guilt and thinks that this form of punishment will make her learn her lesson better.