Here's why:
* Folklore and Fairytales: The Three Little Pigs is a traditional fairytale, originating from oral storytelling traditions. These stories are considered part of the public domain, meaning they are not owned by anyone and can be freely used.
* Age: The earliest recorded versions of The Three Little Pigs are from the 19th century. Even if there were a copyright on a specific version, it would have long since expired. Copyright protection typically lasts for the lifetime of the author plus 70 years.
However, specific adaptations or versions of the story might be copyrighted. For example, a particular children's book or movie based on The Three Little Pigs might have its own copyright.
So, while the basic story itself is free to use, you might need to be cautious about using specific versions of the tale that are still under copyright.