Dementia and/or serious motor issues will mess that up every time, unless you've got a close family member who's willing and able to be a full-time caregiver for years on end.
But sure, some people avoid that through some combo of luck, genes, and clean living. Or just die before it becomes an issue, I guess.
Yeah, my grandma has dementia, can't walk without assistance, and basically just shits herself all the time. She lives with my mom, but she doesn't have the energy or mental fortitude to be the full-time caretaker she needs. She wants to put her in a caretaking facility, but just doesn't have the energy to research options, not to mention the money. She wants to call my uncle and ask him to pay for it (Grandma and the uncle are on my dad's side, but my dad passed 3 years ago), but has basically been avoiding making that call.
> Or just die before it becomes an issue, I guess.
If I ever get to the point where I'm no longer living, but merely surviving the way my grandma is, I'd sign a DNR and make it my solution.
But sure, some people avoid that through some combo of luck, genes, and clean living. Or just die before it becomes an issue, I guess.