I have a Doberman who is pretty well-behaved and obedient, but I have noticed that he doesn't bark at strangers. He is usually very alert and attentive, but when someone new comes to our house or walks towards us on a walk, he doesn't make a sound. I find it a bit concerning because I want him to act as a guard dog and alert me if there is any potential danger.
I got him as a puppy and I have always trained him to be socialized and friendly around people as well as other dogs. However, I also want him to be protective and bark if he senses any threat. Is it normal for a Doberman to not bark at strangers or do I need to train him differently? I would love to hear from other Doberman owners or experts who have experience with this breed. Thank you!