I think it is such an individual choice.
I remember my brother getting really angry and scathing about our stepmother not changing her name back in the 70s when it was quite 'out there' and then more so when I kept my name on marriage in the 90s. He actually told me 'I did not have the right' to use our surname for my children!
Then funnily enough his wife to be confided in me that she did not want to change her name so I pointed out she really didnt have to..and she actually listened to me!
ha ! one in the eye for big bro!
but apparently her mother and brother were really disapproving. She has one of those names that everyone would recognise at once as coming from a certain family.
I used to think that if I were called eg Smellie or Pigg then I would have been delighted to change. But what happens to men with those names?