Why do hunters gatherers use stone knives?

Hunters and gatherers use stone knives because they are effective tools for cutting and processing food, as well as for crafting other tools and materials. Stone knives can be sharpened to a fine edge, making them suitable for butchering animals and preparing plant materials. Additionally, they are lightweight, readily available in nature, and can be easily replaced or repaired, making them practical for a nomadic lifestyle. Their durability and efficiency have made them a staple in many traditional societies.