My dad left his estate to my son "in case he gets MS, the family disease". But it was I who was dx'd with it, a year after he died. I have never emotionally fully recovered from this expulsion from my dad's favor. In his will he stated that "I had a career" and needed no money. But he left all his jewelry and mementos also to my son. My mother survived him but, as she had never worked, she went along with this. I still am on good terms with my son and his children. I could sure use some of my dad's funds now, so I could go into a reasonable retirement home in a desirable location.
But I am not starving and have a roof over my head. It does hurt, though.