With a quick warning that this explanation, like the actual tales, are basically R rated, let’s just start with Red Riding Hood. Here’s what different sources said:
Wikipedia tells us that Red Riding Hood is a European fairy tale about a young girl (walking through the woods to deliver food to her sickly grandmother) and a big bad wolf. Its origins can be traced back to the 10th century by several European folk tales, including one from Italy called The False Grandmother . In the Grimms' version, her mother had ordered her to stay strictly on the path. Some versions have her being saved by a huntsman.