People usually put blame on the personality of the dog but more often it is what we do, or don’t do, that is the cause.
One thing is certain and that is if you leave it, it will not get better. A dog that has had a problem for a long time gets used to having it and will not change.
There are many misunderstandings in this area. For instance, fear can cause what looks like aggression and freedom to do as the dog chooses can cause a host of problems.
Don’t leave it as it is, because the longer you do the deeper seated and un correctable it will become.