How are you supposed to make it "your dog?" With a wife who loves the new puppy, and kids who adore dogs, are you supposed to keep them away? I can understand training sessions with you and the dog alone, but are you saying the family can't enjoy the pup too?
I understand what is happening at your home. I went through the same thing.
All I did was make sure that the dog and kids play time had strict rules of what they could and could not do with the puppy.No tug of war with thedog. Any game of fetch was made to be done by the standards of training. The funny part was.. how many noted, the dog playing fetch with thekids would get theitem and then bring it to you instead of them...
I was also real strict on how the children treated the puppy. For some reason kids like to boss and order a puppy around. You have to watch that close. I even caught them physically punishing the dog once and advise them that they do not administer punishment. And that I better not catch them doing that again or the punishment would be much different. And I explained to them that the dog did not know the English language and simply because they told the dog to do something did not mean that the dog would do it... They had to live with that fact. Telling a puppy to go to the corner and lay down was not something they should expect the dog to do.
Also when it was feeding time I made sure the pup saw me giving the food and I would even sit and feed the pup by hand a little so they knew that my hand was the most important thing in their life. I am not one that believes in giving a dog a treat every time it does something right. All you get is a dog that wants a reward of food for every little thing, and a fat dog. I would praise and pet the dog instead. Then they learn that pleasing you is what makes the world go around.
The bathroom part was easy.. none of them ever wanted to do that duty. When it was the dogs time they always figured I would do it... But I agree you can not keep the family out of the interaction of a puppy's life, but you can set limits of conduct. Get the kids involved with the dog and even the training to a degree, but do not let them interfere.
I always remember the time I checked on the boy and the dog (since it slept in his room) one night. The dog was on the bed all stretched out, and he was on the floor curled up in a blanket. When I asked why.. he explained, the dog takes up too much room and like the bed to sleep on. That ended real fast....