Why isn t Smurfette a real Smurf?

Could you elaborate on why Smurfette isn't considered a true Smurf in the context of the Smurfs universe? Is it due to her unique physical attributes, her origin story, or perhaps her role within the community? Are there any cultural or societal implications to this distinction, and how does it impact her place within the Smurf society? Furthermore, how does this distinction shape the broader narrative of the Smurfs franchise and the messages it conveys to audiences?