Namechanging is an issue I have some mixed feelings about for me personally - even though I completely recognise the inequality of it overall.
I changed my name when I married DH. My family background was a bit messy:
Mother and Man A had DB1. Man A was off the scene and due to some bizarre family crap was given the surname of mother's step dad. This was not mother's name...(nope, no abuse although poor DB1 thought that might have been the case for many years)
Mother then married Man B and had DB2. DB2 and mother took married name. She also started using married name for DB1. As an aside, it's not a terribly nice name.
Mother and Man B divorce after a few years
15 years after DB2, mother and Man C have me. I'm named with man C's surname. They then split up, mother behaves like an arse (par for the course!) and she starts using her surname (Man B's) for me too.
By the time I'm getting married in early adulthood:
-I'm estranged from my mother who's refusing to even attend the wedding (raging narc!)
-DB2 has turned out to be an abusive git
-DB1 is lovely, and has changed his name back to his birth name
-All of my documents are in mother's married name
I felt no link at all to "my" name by that point, so I changed my name to DH's. I don't regret doing so, I like the name and it works for me.
But I totally see the feminist side of it and almost feel a bit guilty for doing so and I've had a couple of people give me a hard time for changing my name.
I suspect if I'd been getting married 10 years later having built a career I wouldn't have change to DH's, although I'd probably have done as DB1 did and changed to something else before then!