According to the historical narrative, what was the necessary prerequisite condition for the button to transition from a toggle to a true fastener?

Clothing being cut closely enough to require securing

The core necessity driving the evolution of the button from a simple disk to a functional closure was related to garment construction. Prior to this evolution, clothing often relied on draping or tying. The practical utility of a button emerged only when tailoring advanced to the point where garments were cut closely to the body, demanding a reliable mechanism—the button and buttonhole system—to keep the structure securely fastened. This need became particularly pronounced in medieval European fashion after the 13th century.