my 12 months baby is not walking and did he did all the milestones late so it causes any harm to my baby

A. There is no need to worry about it. Most babies walk around 10 to 12 months of age. Some babies take upto one and a half years too. This is dependent on factors such as baby's genetics, her physical strength as well as her determination. Hold your baby at the upper arms in a standing position and move her arms forward one at a time. Her hips and her legs will follow helping her to walk with some assistance.