Why do you think a 9-year-old girl would suddenly leave home (true crime case)?

In 2000, nine-year-old Asha Degrees packed her backpack and left home in the middle of the night amidst a thunderstorm. She hasn't been found, but her backpack with clothes inside was found wrapped in a plastic bag off a highway. This was before social media, so it's not like she was chatting with people on Facebook. Why do you think she left home out of nowhere?
Why do you think a 9-year-old girl would suddenly leave home (true crime case)?
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