A brake on the baby walker is used to control the thrust of the movement. Especially young children who lack experience and who are just learning to make their first steps benefit from the subtle slowing down. If you want your baby walker to be used as a stationary activity table since the short legs find it difficult to touch the floor while moving, then looking for baby walkers with locking wheels would be an added advantage. Once the baby becomes tall enough that his feet touches the ground comfortably then you can switch to using brakes with movement.