What is a common developmental milestone for a 2-year-old?

The ability to walk and kick a ball is a common developmental milestone for a 2-year-old. At this age, children typically exhibit significant gross motor skills development. They are often able to walk independently with ease and begin engaging in play that involves more complex movements, such as kicking a ball or climbing. This reflects their growing strength, coordination, and balance.

Regarding the other options, the ability to speak in full sentences is generally more characteristic of a 3 to 4-year-old child, where language development progresses to more complex forms of communication. Riding a bicycle typically develops later, around the age of 4 or 5, as it requires greater motor skills and balance that children at 2 years old may not yet have. Forming social relationships is also important, but at this developmental stage, social interactions tend to be more parallel play rather than engaging in cooperative play, which is more common in older toddlers and preschoolers.