#asktheexperts My daughter is 6 months old. I've seen my neighbor's baby boy he is one month older than my baby. He can sit up by his own before one month itself and now he can stand by himself. But my baby girl still trying to crawl and she couldn't even fold her knees now. But she's progressing late when comparing to other babies. I want to know why is that? usually people will say girl baby will be more active or walk first than boy babies. so I had a doubt. why is that?