OK, that's your opinion, I believe that you should do whatever suits your lifestyle and look at your dog and teach him accordingly. My dog is not jumping allover people and mouthing when they come to my house. He knows very well he must not do that. But if someone's affectionate he will open his mouth and put someone's hand in it - not closing it. It's like yawning and having a hand in his mouths, I can't describe it, but it certanly cannot hurt your skin, or even kids skin because he plays with my nieces very often. So, there's no bite whatsoever, no squeezing, its basically licking and opening mouths that's all. With humans. With Ira is different it's their dogy game and they behave like dogs.You can disagree...that is ok. Mouthing HUMANS should be discouraged and done early.
If you read my posts you'll find that I do not believe in "alpha theory" and I explained why. I certanly am the leader and have wonderful polite dogs that I am really happy with. I also allow them to be dogs.Hopefully your Rottweiler is not the boss of the house to set the rules, which means it is not the Alpha...you are hopefully "the Boss" as you like to call it. It is ABSOLUTELY true that dogs communicate with each other using their mouths, but that doesn't mean it should be allowed to mouth humans. Our skin is a lot thinner and more sensitive than dogs. It is a lot easier for our skin to be punctured than dog's skin.
Well it's not all black and white. You can let him, but you must know the limits and know how to teach your dog to know limits. You can't simply just "let him mouth" thinking it will go away. I never did!!! And I never would.When we had our Rottweiler...breeder told us...just let him mouth you...he will grow out of it. Stupid as we were and naiive...we listened. Unfortunately he didn't stop! He got bigger...and stronger and was still mouthing. He then thought it was ok to do it to other people too. A behaviour is a lot easier to deal with when it is done early!