Owning any pet can be all kinds of work to try and domesticate your pet. You want to try to get them to learn how to use the bathroom, eat from their food bowls as well as get them to do things in a proper manner so that they won't ruin your home and just generally create messes all over the place to which your home will just be ruined.
People have now even started owning a domestic duck as pets because they love animals and even want to have ducks be included in the family. I know this may sound a little strange, but it's true, people even own ducks that they keep in the house and train just like any other pet that they might own. Since this is the case people will have to be able to do certain things in order to get their ducks trained well so that they won't ruin homes they live in.