Some cultures follow family lines through the male side, some through the female.
Myself, I gave all my children my maiden last name, because I wanted them to always share my name. I've never changed my name, and I wasn't married to their dads.
But as far as changing it, naw, it will be easier for your kids and their kids to research your family tree, particularly if you don't know much about that side, if you just leave it.
It's completely personal.
My son was saying he wanted to change his name to reverse his first and second names, because in my family many of the men are known by their middle names, and he was tired of explaining it to DMV, banks, etc. every time he transacts business. He signs with his first name, but people will be, "wait, I know you, that's not your name..." and he's like, "Yes, it is..."
But I told him if he changed it now then it would just make the explanations even more convoluted and complicated.