In Quebec, by the way, a woman can apply for a name change of she desires. So she does have "choice"; it just is a similar process to someone wanting to legally change their name for any other reason.
As for the OP...
I married my DH last year and kept my name. I'm confused (well, confused and a bit disgusted) by your question. How on earth does not wanting to engage in this one particular tradition (which, as has been already pointed out, is hardly a universal tradition of marriage, but only one practice among many!) suggest that I don't have any real interest in the spiritual, cultural, social, and financial arrangement of marriage?
In some places and amongst some people, it is also a marriage tradition to present my husband with a dowry. I didn't do that, either.
I didn't wear something blue at my wedding, either, come to thnk of it. Why did I even bother to get married???
There is no legal requirement where I live to change my name. There is no requirement within my church. My family does not recognize or follow the tradition of taking the man's name. So whose sensibilities am I offending, exactly...? 