Fuck dementia, I really don't want to die that way. To lose all sense of dignity in front of all of your family, you don't even get to die quickly and your family have to bear the burden mentally and financially of taking care of you / keeping you alive until you died, and you won't even remember the face of your own family.
You'll be surrounded by strangers in your death bed. And then you died as a "Bother" or "Annoyance" to some of your family, and when you died, some will even breathe a sigh of relief.
Here's hoping Elon's BMI will be done by the time I'm getting old