A dad is one of the most important people in his daughter's life. He is the one who teaches her how to drive, how to be tough when it matters, and most importantly, gives her a standard of how every other man in her life should treat her. While mothers are great for nurturing and caring for you, a dad can do all of that and then take you into the garage and teach you how to use power tools or swing a baseball bat. While there's a million reasons a girl needs her dad, here's just a few that I can think of that mean the most to me.