Kittens can leave their mother when they are between 8 to 12 weeks old. This is the time frame when they are typically weaned, socialized, and emotionally developed enough to be independent. Staying with their mother during this period is important for learning essential skills, receiving immune protection from mother's milk, and gaining emotional stability. Separating kittens too early (before 8 weeks) can lead to health risks, behavioral issues like fearfulness or aggression, and difficulties in adjusting to new environments. Ideally, keeping kittens with their mother until around 12 weeks is even better for their overall development and social confidence.
