The sole purpose of a father -

To teach a son to respect himself as well as others. To raise him in a way that he may one day raise a family and carry on the family name.

If the son hasn't any good qualities to be a father than it is the father to blame. It is in fact what the son sees from his father, and also what his father has taught him. What a father will do in certain situations has to be learned by the son because if the son is faced with the same situations then he should know how to react. There are no excuses for a father not being able to teach his son how to become a man. Just as his father taught him and his father's father taught him. It is imperative that the father teaches his son the essentials of life before the streets find out he has not been taught. The streets have their own way of teaching and the outcome changes the son.