yeah my ducks are pets so i spend a lot of time with them, i also have 5 compared to having a large flock so they are more comfortable around peopleThis is a good example of the variability each individual owner will encounter when trying to "wean" their ducks from their presence. Judging from your profile picture, I presume you spend lots of hours with your ducks; this being the reason you still are seeing this type of behavior at 3 years.
For owners, such as myself, who do not spend excess amounts of time outside with the flock, weaning time is going to be dramatically earlier on in age.