No, i understand that our history and our traditions help to define who we are and how we think. And if something has always been done a certain way then people will often accept that, without question. Not questioning a belief or a tradition that you have been brought up with does not make you 'unthinking' full stop, it means you haven't thought about this, because it just is. That isn't me making things up, entire, very powerful religions are based on people accepting tradition without question - its what people do, they have other things to worry about and changing your name or not is not going to rank high on people's worry list.
I have already stated I don't care either way what people do to their own name. but the fact that women are generally expected to change their name, and will give it some thought on getting married - whilst men won't even stop to consider such a move - can tell even the hardest of thinking that there is a societal expectation that is placed on women from without, and many just go with it.
I know if I got married when I was in my early 20s I would have changed my name, i practised my new signature and everything. Because i hadn't thought about it, it was just what you did. Now I've thought about it and its not for me. Both my mother and grandmother changed their names without thinking about it and went on to regret it.
My opinion is neither here nor there, my point has always been that it is not a free choice made in a vacuum. it is a choice made heaped with societal expectation, negative reactions to going against the grain in some cases and centuries of tradition. Those traditions have misogynist origins. The fact that women routinely follow a societal expectation and men don't bother is sexist, and this societal expectation has been brought to us through the mists of a patriarchal past.