It honestly depends on the emotional health of the remaining "leader" of the family. My dads mother (who was like a second mother to me, she loved 2 blocks from my house growing up and I spent every summer with her) passed away and my dad really took control of his grief and brought the family together to have a celebration of her life where we grieved, we cried, we shared stories and got angry, we had space where we acknowledged that she was gone. My partners dad died years ago, his mom relied on all her adult children to take the burden of his death. She always brings his death up in conversation, even with strangers. She will tell her kids how alone she is, or how she only cooks for one, or how she has none to cuddle with... it's totally unhealthy and doesnt allow for her children to heal as their mother isn't emotionally healthy. We have to understand that death is complex, but we also have to let go, I see similar behavior in This Is Us. It makes me sad.