Waiting for your child to say its first word feels like it takes an eternity. They learn to communicate with sound very early on in their lives, but it takes much longer to frame those sounds into words that can be understood. We patiently teach and coach them, hoping that it will be our name they say first. We repeat it to them over and over again.
Once they've learned it, that repetition can come back to haunt us. Now they know your name, they're not afraid to use it any time they want something. In some cases, they'll use it when they don't want anything at all. How many times have you been sat in another room, hearing them call for you over and over, and lamenting the fact that you ever taught them how to talk in the first place?