Coraline is an allegory about sex abuse
So many interpretations around, I wanted to throw this one out.
Its pretty airtight that the story could be seen as an allegory of sex abuse. The other mother grooms Coraline with toys and candy and gifts and affection. Coraline feels neglected by her own parents but the sweet and cool Other Mother initially presents Coraline with everything she thinks she wants. Then Other Mother reveals its true nature. It just wants Coraline to pleasure its sick desires. Coraline wants out but the Other Mother feel like Coraline owes her because of the gifts and goodies. Coraline realizes what OM's real intentions are but by that time it's too late. The Other Mother is a child predator who comes in a form of a parent. Taking Coraline's soul is just an allegory for taking her virginity.
And once the OM has taken a child's soul(virginity), it discards them and moves on to another child.
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Long ago men competed on a show to date a woman who competed on a show to date Flava Flav.