Complicated subject really.
To some extent grief (of responses) allow abnormality (time to renormalize/adjustment – generosity that way), but it also lends to some less helpful things, perhaps not so much a stereotype exactly, but that is in there, about it. You see it in terms like devastated. And people can be weird, death somehow makes the deceased and those near public property, sort of issues a license.
It often involves misery, no question, a mind or minds’ committed/dedicated neurons adjusting to a new reality. But for some period, quite a long time (possibly many years, don’t underestimate that) the work of adjustment is the norm.
Crazy thing is the conventions/expectations related can be murder, over and over. This may seem odd, but what you don’t want is to kill the person (deceased) again and again. They are a memory, and mostly always were while alive.
Normal of the living has no great love of death, or the dead. Call it aversion. It’s not the territory of native competencies, perhaps more so in modern times, as there’s detachment from the practical reasons for burying people (bodies rot, they smell, and animals feed on them).
So, the grieving want to keep of pull some normal from the whatever.
Death (notions related) feature big of behaviour controls, most of which resides in the informal field, in the aether, though the state (that ideological mostly) delivers, it’ll help dissipate the deceased into a larger social field.
Which maybe raises the question…
Is some of grief (twisted) acknowledgment, a lament, that culture (to generalize upward to a larger scale) no longer has any power over that person. A loss that way – entity dissolved.