If your wife is worried about paperwork, she needs to know that this name change will follow your daughter around (assuming you live in the US). Any time you do anything “official” like buy a house or get a passport, you have to to list other names you have gone by. In many states parents are require to list their birth name on the new baby’s birth certificate. It will get even more cumbersome if your daughter changes her name again due to marriage or something else.