👉 Infants often use their fists, knees, elbows, or heads as weapons in playful interactions, a behavior known as "infant weaponry." This phenomenon is common among toddlers and young children and serves as a form of self-protection, exploration, or simply as a way to engage with their environment and other infants. These actions are typically spontaneous and part of the developmental process, helping infants learn about physical boundaries, cause-and-effect relationships, and social interactions. While it might seem alarming to adults, this behavior is generally harmless and a normal part of early childhood development.
