I feel so strongly about this. Changing your name when you get married is a choice, yes, but that doesn't make it a good choice. The problem with doing things like this - unless men and women do them equally - is not whether it's right for you, but the message it sends to everyone else.
When a woman changes her name on marriage, but doesn't expect her husband to do the same, it tells her husband, her kids, her colleagues, and basically everyone in the world "As a woman I am not as important as him". It just does. Because his name becomes the name of the family, and hers is obliterated - and what that says is that she doesn't matter as much. EVEN IF it's practically trivial/irrelevant, that message is so importat because it is one of the many, many ways girls and boys get that message as they grow up. And that message, so deeply ingrained in so many people, leads directly to situations like a man beating up his partner and her putting up with it.
I know people will throw their arms up in horror and say :How dare you accuse me of causing DV by changing my name" - I don't mean any individiual is responsible, but by changing your name you are contributing to that deep inequality, and thereby directly counteracting feminism.
Feminism is NOT about choice. It is utter nonsense and wibble to say that if a woman chooses to do something, it must be feminist because she's made the choice herself. Wibble. Here are some of the things women freely choose to do - stay with men who beat them up, inflict FGM on their daughters, throw acid in their daughters' faces because they dishonoured the family by looking at a boy, wave their tits around for the Sun, rip their pubic hair out in agony so they can look like a child porn star for men who expect it.
Feminism is about equality and helping each other, and men, to see what that means.
My hard hat is on.