Also why even mention voices? Larian already said the game will NOT be fully voiced.
There are only two compelling reasons to not let you name your character:
1. The dialogue is fully voiced (though Mass Effect had this and still let you choose your first name).
2. You're telling a story about very specific characters (and even then, Final Fantasy did this and often let you name your characters).
Add 1 + 2 and you've got a very strong reason to have a fixed name (like Geralt from Witcher).
It's kind of a pointless argument though. It doesn't appear there are any limitations on character names.
