My dad died at the beginning of the month. Unexpectedly and suddenly 
He might have been 86 but he was fit and healthy (and tall, iyswim). We all expected him to go on for st least another 3 years (his mother died at 89) if not 10 (his mother's older sister died at 102).
We are all devastated - and that includes my dh, his son-in-law. 
It wasn't that we were in denial: we talked about death and his plans with my dad (in fact, he'd started writing his own eulogy). It was just he was still so full of life: not long back from an extended holiday in the Southern Hemisphere with his lady friend who lived there. But he was still making plans and living life to the full.
You can't get much more pragmatic than an ex-cattle-farmer-turned-doctor so we did often talk about death. So we knew it would come - it just came much sooner than we expected 
He had friends of all ages and they too are in shock.
My mother died 11 years ago, as an indirect result of an accident she'd had a few years previously. That was to an extent a relief as we'd "lost" her a few years before, so once she'd actually died, we could start to remember her better as the glorious, beautiful woman she'd been.
Dad's death is still raw. It's also meant that the grief I have from missing my mother and the fact that I couldn't share ds growing up with her has resurfaced 
We had the funeral last week. Dad might have been 86 and assumed that, statistically, there would be few people there. But there was about a 100 people, of all ages, there: friends, family, neighbours, many, many former colleagues (despite retiring 30 years ago), all wanting to pay their respects.
His was a life well lived. But it doesn't make it any less sad when someone who was loved (and who loved) so deeply, goes. 
It's nothing to do with being a dysfunctional "enmeshed" family: dh comes from a dysfunctional family and we felt nothing but relief when his mother died not in the nice way that's we'd felt when my mother died and not a single tear was shed.
The OP doesn't having a fucking clue. 