Which developmental milestone is typically achieved by 18 months of age?

At 18 months of age, many children typically achieve the milestone of walking unassisted. This is a significant developmental step that indicates a child's growing strength, balance, and coordination. Walking independently allows children to explore their environment more freely and engages them in new experiences, which is crucial for their overall development.

While some children might start walking slightly earlier or a little later than 18 months, unassisted walking is commonly expected in this age range. This milestone is part of the gross motor development, reflecting the increasing ability of toddlers to control their movements.

The other milestones mentioned occur at different ages. Scribbling usually starts around 15 months, using two-word phrases generally develops by 24 months, and recognizing familiar faces can begin earlier in infancy, typically around 6 months but becomes more apparent as they approach 18 months.