Why are skeletons hostile in minecraft?

Skeletons are hostile in minecraft because they are programmed as hostile mobs that attack players on sight. Their primary function is to challenge players and add difficulty to the game, utilizing bows to shoot arrows from a distance. This behavior contributes to the survival aspect of Minecraft, encouraging players to strategize and defend themselves against various threats in the game world. Additionally, defeating skeletons can yield valuable resources like bones and arrows, making them a target for players seeking to enhance their gameplay.