I think that it was said that TP link was the oldest of all of them at 17. Most "Adult" Link(s) are 16. FD Link is supposed a grown adult and his height is said to be around 7'6" or something like that. I'm guessing it's just the influence of the God mask but wouldn't that be a hoot that that's actually Link's adult height and size and unfortunately he just does most of his growing around 18-20 or something. LOL it would kill me. That he grows only after all the life threatening stuff, especially since a bigger body would help in some fights, ... not sure if Epona could safely transport him though.