Is my brother's growth rare?
I'm his sister and all of us come from a tall family. Until age 17, his height was still 5'5 (4 inches shorter than me and the shortest in the family at the time), very skinny and looked so much younger. He would get confused for a 12-13 year-old kid.
It would take 5 years later for the big transformation. By now he's a 6'3, full grown 24 year-old man, weighs a lot more and forever lost his baby face.