Hi guys - I'm about to get a dog for my family, as my oldest son is very eager to do so. He's done quite a lot of research and is confident that even though we are inexperienced, he should be able to train the dog effectively. I was just confused however, as I've heard that mastiff breeds are quite stubborn and hard to train? Not to offend anyone who has the breed of course, but I have no where near as much knowledge on this topic as my son has. We typically need a large, protective dog (for us and our home) that doesn't need too much exercise, like a German Shepherd or a Rottweiler. Also a dog that would probably be not too much of a challenge to train? I've asked my son about this and he's kept on telling me that it's pretty much impossible to find the perfect breed, and sacrifices would have to be made. I typically would like a fairly easy to train dog mainly as I don't want to give my son too much of a challenge. If anyone could match us with a breed, or even a breed outside the three, we would really appreciate it! Thanks for your time! (Also if you don't have time to respond, please do the poll)