There are a lot of opinions out there about whether or not 13 is a special birthday. Some people believe that it is, because it marks the beginning of adolescence. Others believe that 13 isn't particularly special, because it's just another year older. And still others believe that 13 is special for superstitious reasons (such as it being considered an unlucky number). Ultimately, whether or not 13 is deemed a special birthday is subjective. However, if you ask most teenagers, they'll probably tell you that it is a pretty big deal!