I will definitely be changing my name when I marry, I'm lucky that I like my boyfriends surname. I like the idea of becoming mr's x when I marry, but I don't think there's anything wrong with not changing. Personally I like the idea of my children, myself and my future husband all having the same surname. My nickname comes from my surname so I could see that causing some confusion down the line when I meet new people after getting married! And I have a brother to carry on the name, I'm not sure how I'd feel if I only had sisters and we all took married names. I have a sneaking suspicion I wouldn't like the surname not to be carried on.