Although the story is very tragic, it serves as a warning to those who only desire a peaceful life within their family home.

>>1
>it serves as a warning to those who only desire a peaceful life within their family home.
I see something different - I think it shows the tragedy that can result when traditional family functions and responsibilities are not followed. The first failure is of the son, who does not respect his father and rebels against him (he thinks he knows best, though actually he is in the wrong). The second failure is of the father, who is unable to forgive and better instruct his son, and decides to cast him out, though the son is naive and unready. The third failure, perhaps, is of the daughters, who, due to their grief, abandon their father in his old age.