A father should be there for his kids inspite of the relationship with the mother. He should provide financial, emotional, and structural support (discipline). I feel he should have good character in his personal life so that when his kids look at him they would know what was the best thing for them to do in life. He should be there to offer good advice for them. This lets the children know a different perspective on things. It also allows them to not have trust issues later in life. Whether we know it or not fathers are importanct.