I'm not a big fan of the practice, but I see nothing wrong with it. I guess growing up in the South not in a rural area but near it I've known a lot of professional men with names like
Bobby and Jimmy-Wayne as full names, and I see it as no different on a girl. I really think more parents should do this, because a lot of times they end up using names that they don't like, and most people I've met never switch away from whatever nickname thay went by as a child, so it doesn't make much of a difference to have a full name, except that you'll always have to correct people as to what to call you at the beginning of the year in school if you have a full-name to go with it.