The Little Doll (hypothesis)

     The doll maker's memory made the doll so sad that he no longer became magical and turns into a normal doll covered by dust and being ran over by cars for the next few years. When the doll maker's son found it, it was so dirty that instead of washing it and making it good as new, he burned the doll to ashes and said, "whoever made this doll is a fat idiotic disgrace! Even if she's my mother!"