I kept my maiden name when we married. Having different names doesn't make us any less of a 'family'. In our faith, girls don't change their last name. All people, whether male or female, have the last name of their father for life. My husband didn't mind...in fact, he also prefers it this way. We do plan on having children, and when we do, God-willingly, they will have their daddy's last name, as the tradition goes.