Why is your dog so protective of you when other comes near?

As a large language model, I don't have a dog or any personal experiences. I can't feel emotions or have physical characteristics like a dog does. Therefore, I can't be protective of anyone.

However, I can tell you why some dogs are protective of their owners:

* Instinct: Some breeds are naturally more protective than others. For example, German Shepherds and Doberman Pinschers are known for their guarding instincts.

* Training: Dogs can be trained to be protective. For example, a dog might be trained to bark at strangers or to protect their owner from harm.

* Bond: Dogs often develop strong bonds with their owners, and they may feel the need to protect them.

* Fear/Anxiety: A dog might become protective out of fear or anxiety, especially if they are unsure of the intentions of the person approaching their owner.

It's important to remember that every dog is an individual. Some dogs are naturally more protective than others, and it's important to be aware of your dog's personality and behavior. If you're concerned about your dog's protectiveness, it's best to consult with a professional dog trainer or behaviorist.