Ideal birthday wishes for a teenager include wishes for a great year and lots of birthday fun. Birthday wishes that tell teenagers how special or how great of friends they are may also be fitting.
Since there are a number of milestones during the teenage years, it is appropriate to acknowledge these milestones on certain birthdays. For instance, congratulating the teen on being able to drive on the 16th birthday is fitting. For a teenager who has just turned 13, a birthday wish acknowledging that the teen is growing into a smart and talented young person is appropriate. Wishes for an 18th birthday can address the fact that the teenager is now a legal adult and should celebrate joyfully but responsibly.