How many friends and or families what your wishes are?

Also...I would say "become incapacitated." Because "become a burden" is loaded with negative connotations. I think there are lots of us here that would say that caring for another person is a privilege of inexpressible value. And that the person is not a burden but a sacred trust.

Only the piece of paper that's my Advanced Healthcare Directive.

Only my sig other knows, since I have no siblings nor children. It's all written out in my Trust, Will, POA's, etc. therefore my Elder Law Attorney also knows.

The people who need to know know. My POA, my HCPOA, my significant other, his brother and sister, my cousin who is close, four of my BFFs. I don't have kids or they MOST ESPECIALLY would know as well.