what kind of attitude does this breed display?
They are considered loyal, courageous and affectionate, and are among the dog breeds recommended by the KC as suitable for families. They have a reputation for pugnaciousness, and when challenged by another dog it is characteristic of them to not back away.
Staffordshire Bull Terrier
 They are considered loyal, courageous and affectionate, and are among the dog breeds recommended by the KC as suitable for families. They have a reputation for pugnaciousness, and when challenged by another dog it is characteristic of them to not back away. 
when is a staffordshire bull terrier fully grown UNANSWERABLE what is staffordshire bull terrier? It is a British breed of short-haired terrier of medium size. can you describe its features? It is a stocky, muscular and unusually strong small to medium-sized dog that stands at the shoulder. It has a broad chest, strong shoulders, well-boned wide-set legs, a medium length tail that is carried low and a broad head with a short muzzle; its ears fold over at the tips and are not cropped.
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Staffordshire Bull Terrier [SEP] Temperament and health
Even in the days of blood sport, the Stafford was always a family pet and companion dog, and is even more so today. They are considered loyal, courageous and affectionate, and are among the dog breeds recommended by the KC as suitable for families. They have a reputation for pugnaciousness, and when challenged by another dog it is characteristic of them to not back away. It is recommended that puppies receive early socialisation; certainly before 18 months. Staffords are healthy and robust dogs with a life expectancy of 12–14 years. Hereditary eye conditions, including L-2 Hydroxy Glutaric Aciduria (L-2HGA) and Hereditary Cataract (HC-HSF4Hereditary, are known to occur in the breed.