"I now pronounce you man and wife, you may kiss the bride... etc and so forth." This is followed shortly after by the MC announcing the newly married couple, "Now, introducing for the first time, Mr. and Mrs. Smith..."
In the past it was always assumed, and expected, that a woman would take her husband's last name once they got married. Not only is not expected anymore, it's not even safe to assume that it will happen. That being said, 57% of people think that a woman should take whatever name she chooses to.
Even using the term "maiden name" is considered to be out of date, and that it shouldn't be used anymore. This change has been happening over the last decade as more and more women choose to keep their last names.
But men that marry women who keep their last names aren't so lucky. Science Daily posted the results of a study that showed that people perceive men, whose wives didn't take their last name, to be less masculine and that they have less "power" in their marriages.
"A woman's marital surname choice therefore has implications for perceptions of her husband's instrumentality, expressivity, and the distribution of power in the relationship," said lead researcher Rachael Robnett of the University of Nevada