The main reasons why it is not recommended to raise a black wolf dog are as follows:

1. Fierce and aggressive personality: The black wolf dog has a relatively ferocious personality, with high vigilance and territorial awareness. Especially when facing strangers, they may show strong aggression and easily scare or hurt others.

2. City restrictions: Many cities prohibit the breeding of black wolfhounds and other fierce dog breeds, mainly due to public safety considerations. Therefore, even if you want to raise a black wolf dog, you may not be able to do so due to local regulations.

3. Large amount of exercise: As a large dog, black wolf dogs need a large space for activities and sufficient amount of exercise. Failure to provide adequate opportunities for exercise may lead to behavioral problems or health problems.

4. Training is difficult: The stubborn and arrogant character of the black wolf dog may make it difficult to train, which requires the owner to have sufficient patience and skills. Training a black wolfdog can be a challenge for people who don't have the experience or time to own a dog.

5. Large appetite: Black wolf dogs have a very large appetite and need to consume a lot of food every day, which will also increase the cost and burden of raising a dog.