Trivia: For players of the 3DS version, when you receive the Ocarina, press the following buttons. X, Y, R, X, Y, R, X, Y, R, L, R. The song that is played is the Song of Healing, which appears in The Legend of Zelda: Majoras Mask.
Trivia: In the Nintendo 64 version, after getting past all of the guards and making it to the courtyard, look in the right window. You will see pictures of Mario, Peach, Bowser, and Yoshi. Take out the slingshot and hit Mario and you will be rewarded with 20 rupees. In the 3DS version you will see a picture of a level from a Super Mario Bros. game. Look for a question block and hit that with your slingshot to receive the 20 rupees. Do not hit the left window. If you do, a guard will appear and throw a bomb at you.
Trivia: When meeting with Malon at Lon-Lon Ranch, look at the brooch she is wearing. It is Bowser's face from the Super Mario Bros. Franchise.
Answer: Because the Kokiri don't age past a certain age, but they do age up to that age. Link looked roughly the same age as the other Kokiri when his adventure started, which is why they never noticed that he was different.