If you "have to" clean your room, you automatically feel like you don't want to or you rather not.
If you "have to" do homework, you feel you really don't want to.
Or, if you "need to" get a job, you might feel you don't want to and make up excuses like "I'm not ready."
These "have to"s and "need to"s are obligation words like "must" or "should".
When we are told that we have to do something, do we not all instantly reject it?
