NC for this.
I'm early 40s. Still have both DPs and both PILs. I'm an only child. Complicated relationship with my DPs who are on the surface loving, generous and helpful. However deep down my D(?)M is a selfish narcissist who was damaged by her traumatic childhood, and my DF is an enabler to her. There is significant intergenerational trauma on my DM's side of the family.
My DGM lost her DF when she was 10, it was 1929, and he was killed in an accident. Her DM was left to raise the 4 surviving children of the 8 she gave birth to alone.
By the time my DM was born, my DGM was estranged from her family anyway, and all of her GPs were dead.
I was never shielded from the deaths of my own GPs. Mum's F had a heart attack and died alone aged 59. His body lay undiscovered for 3 days. I was weeks old at the time, my DM hated him, and didn't go to his funeral.
My DGM was in her 90s when she died, I was 30. She'd had dementia for 10 years, and she was nasty before that. It was a relief.
On my DF's side, my DGM died of complications of cancer when I was 10. And she was 71. My DGF followed 3 years later from dementia aged 81. I visited both at least weekly until their deaths, and went to both funerals.
And now... I lost 2 friends in my late 20's, one in an accident, one by suicide. I held my godmother's hand as she died from cancer aged 57 when I was 27. My DH lost one cousin in an accident aged 16 when he was only 21 himself, and another recently from alcoholism... At the time they were both early 40's.
I have an uncle who was floored for months when his own father died aged mid-80's. He coped much better when his DM followed a few years later because he was mentally prepared.
This whole thread shows that as a society we don't discuss, or think about death anywhere near enough.
I might struggle to put on an 'acceptable' display of grief when my DM dies. I've told my DH I will not do a eulogy for her - the message will be that I'm 'too devastated'. The reality with be that I just can't do it and that actually I severely grieved the mother/daughter relationship I'd never had with her had in the years after my own DC were born.
I'll miss my DF because he's been a great parent to me... but I grieved my relationship with him too when it dawned on me that he's an enabler for my DM.
I can't begin to explain how I'd feel though if anything happened to my DH or DCs.
For now, I enjoy the good times with my DPs well enough. I'm generally thankful that my DC know them. I take it day by day. How could I be bereft though if a mother who has never told me she loves me, or hugged me properly, or put so many other things first in her life?
We're all different OP, and that's ok.
Thank you for starting a conversation on this emotive and difficult subject.