Some kids are born dwarfs and are fine and lovable kids; often growing into small but outstanding citizens. But the general perception has it that it is an advantage to be taller than most. So, assure your lovely 9 year old lad that all is fine to be tall and fine to be small. It's not what you are on the outside, what matters is how you are on the inside, (I mean friendly, good and kind & lovely). Of course most boys like to be tall, so it?s nice for him that he is so tall. Hugs for the boy!
