I hate to say this, but I’m not sure losing a loved one to dementia isn’t just as traumatic, and I think the trauma could be mitigated here by communicating with the people they love.

When/if I am diagnosed with a terminal disease I hope I will have a conversation with my wife, the rest of my family, and my closest friends about how I want to die and what a life worth living looks like to me. I like to think that I’ll leave this world by my own hand, hopefully surrounded by the people I love, or at least with their understanding and support. I don’t think that’s selfish.

OP, I think you have time to figure out what’s best for you and yours. We’re all terminal in the end. I wish you a slow progression, a meaningful life, and a dignified end someday.