Why now?
Ethel spoiled her children and they all grew up Morons..
Good question.
One thing that always stuck with me was when Joe Kennedy Sr. had his daughter Rosemary lobotomized because she was a little slow and thus not up to the "social graces" that was expected of a Kennedy. Joe Sr. was concerned that she might embarrass the family and adversely affect the political fortunes of her male siblings.
The lobotomy went badly and Rosemary spent the rest of her life in an institution with the mental capacity of a two year old.
That callous and even criminal act always stuck with me.