Which ability is typical for a 2-year-old toddler?

At 2 years of age, toddlers typically demonstrate the ability to walk up and down stairs while placing both feet on each step. This stage in a child's development showcases their growing coordination and balance, but they are still mastering the stairs and may not yet alternate their feet efficiently. Walking up stairs with both feet on each step is a common physical milestone that signifies progress in gross motor skills for this age group.

In contrast, the ability to walk with one foot on each step is typically seen slightly later in development, as it indicates greater confidence and coordination. Running without falling can also be a challenging task for a 2-year-old, as they are still refining their motor skills and balance. Lastly, skipping on one foot usually develops much later in childhood, around the ages of 4 to 5 years, as it requires advanced coordination and balance that toddlers have not yet achieved. Thus, walking up and down the stairs with both feet on each step is the most appropriate and achievable milestone for a 2-year-old toddler.