If your dog is pushy and/or demands things from you and gets them - your dog most likely sees you as a follower and it can lead to behavior problems.
A small list of the things you may see if your dog is pushy & demanding:
Dogs are instinctual and don’t have a concept of time like we do so they only learn to wait if we ask them to. From an early age puppies in the human world figure out that behaviors such as whining, begging, barking, demanding and excitement brings them what they want and this leads to issues in so many ways.