I wouldn't force any wife of mine to change her name if she didn't want to, however, in the back of my mind, I would hold doubt as to whether she really took the commitment and the marriage seriously if she didn't, because it seems like most women who don't change their name when they get married don't take the entire situation seriously to begin with... y'know, it's like, "Oh, we'll be getting divorced anyway, so when that happens, I'll still have my maiden name"... like, if you really love this person and want to spend the rest of your life with him, why are you worrying about divorce before you're even married?