Perhaps that was your experience - not sure if that was adults or children but it is well known that when a parent dies the children need someone to blame - and since that parent is gone they turn their anger toward the only parent left. It is very common, even if it doesn’t make sense to us.
It’s up to us, to understand the decedent......
And their last wishes,
I watched my own father die, in the moment, no issue there.
But I respected my FiL.... And the choice he made to silently bear that burden, though the last 90 days, fell on my wife, to carry him across the goal line.
She gave 3 months.
He gave a multitude of people, wife, adult children, grand children, a good three years,...knowing he was already dead....
That had to be harder than Tarawa.
(Yep, he was mia there)