Umm. At much the same time my mum and a friends mother went down hill at the same time. My mum's brain was GREAT but her body was worn out. My friends mother was great but had lost her mind. We joked about the excellent mum we could make using one as spare parts for the other.
My mum died quickly and the other mum lasted four of five years dying slowly. A combination of Dementia and Alzheimers, and not knowing who her son was. Plus endless trouble with the old peoples homes/Dementia units. They just saw her as a nuisance old lady who pooed her pants, whereas my friend always saw her as his dearly beloved mother.
I guess I had it easier but it didn't look like it at the time.
Maybe, for his sake, he's best off not lasting years like this.
And yes, a beer at the beach sounds like a good idea