I know it sounds a bit odd cos height is one of those what-will-be, natural things but I am actually really worried about my DS' potential final height. He has just turned 13 and is 5'11" with size 14 feet and fairly early on in puberty (tanner stage 2). The red book height chart predicts a final height of 6'6" - 6'7". He's always been tall - he was 58.5 cm at birth, 124 cm on his 5th birthday - and it's not like there's anything I can do. I'm sure there are plenty of tall people out there who would be offended that I consider this a problem but I what if he doesn't stop there? When is tall too tall?