Why did knights in medieval times not use guns?

Knights in medieval times did not use guns primarily because gunpowder and firearms were not yet fully developed or widely available during the height of knighthood in the 12th to 15th centuries. Instead, knights relied on traditional weapons like sWords, lances, and bows, which were effective in close combat and suited to the style of warfare of the time. Additionally, the use of firearms was still in its infancy, and their reliability, accuracy, and rate of fire were inferior compared to established weapons. As a result, the knightly combat culture and tactics were centered around melee and mounted warfare rather than gunpowder weaponry.