True, but I wasn't talking about voice acting. I don't think Zelda needs that. I was just talking about dialogue. As in dialogue boxes. I feel Link should have some dialogue. And I've already explained why.
Ok, this is a whole different point as the one from Ryan. Some interactions like choices in dialogue boxes would be a nice feature. But it should be decent and without a voice actor. But again, Juicie is right. This feature belongs to RPG's ans Visual Novels.
But if you think about it, it's really not that hard. Imagine a young, humble, empathetic, unknowing village boy dragged into this epic quest, and how this boy would speak and interact. It gives a good picture of how link would talk. All it needs is a good voice actor.
Even the imagination is horrible. You really want to feature such stuff in a Zelda game? Maybe Spirit Tracks was the first Zelda you've ever played