Here's why:
* Inbreeding: Mating between close relatives, like a parent and offspring, is considered inbreeding. This is highly discouraged in animals because it can lead to serious health issues.
* Genetic diversity: Inbreeding significantly reduces genetic diversity within a population. This can result in inherited diseases, deformities, and weakened immune systems.
* Ethical considerations: It is unethical and harmful to allow such mating, as it puts the welfare of both the parent and offspring at risk.
It is crucial to understand that responsible breeding practices involve pairing unrelated dogs to maintain healthy genetics and prevent inbreeding.