@zyr1987

I can just give you a practical example: I want to create a feminine male character who is cynical, fearless and rational. 1) There are no feminine male voices available. 2) The voiced PC always shows a lot of emotion ( because otherwise people say that the voice acting is bad and bland. ) Boom, character impossible to create, since every time the character will open their mouth it will not fit.

The problem when you have a voice protagonist is not only with WHAT you can say, but also with HOW you say what you can say. It's not about filling the blanks, it's about how the voice fills these blanks for you in ways that you might dislike.