Why does my 3-month-old kitten still try to nurse?

Your 3-month-old kitten may still try to nurse because it is a natural instinct for young animals to seek comfort and security from suckling. This behavior is common in kittens who were weaned too early or who have a strong bond with their mother. It is important to provide your kitten with appropriate sources of comfort and stimulation to help discourage this behavior as they grow older.