No, no, no, Xurts; I believe that Vivi isn't in the slightest ever depressed and it's completely understandable how the little guy has the right to be sad, cause he gets pushed around at every village/town/city you go to, people always blaming him for what's happened because of his unkindly appearance to the Black Mages. His kind is very enigmatic and small, he was split from them at a very young age, from what I've seen, and raised in a world full of humans and the usual races. The kid's confused when he sees Black Mages, and questions if he's one of them constantly because he wants to find an official answer to his existence. Vivi thinks a lot for a young child, and is courageous, brave and has lot of confidence which others don't see, except for the party. That's why I respect and acknowledge Vivi, he isn't just useful for one spell, but a valuable friend to the party as well.