I watched my 82 yr-old mother-in-law undertake dialysis after she had insisted that she did not wish to do so.
But while in hospital with a serious infection, her renal function quickly deteriorated, and she allowed her doctors to begin dialysis, which rapidly cleared her systemic symptoms. (As a young intern before the era of dialysis, I saw the profound effects of terminal renal failure, then called "uremia." Dialyis changed everything!).
She recovered from the acute situation and embarked on 6 years of dialysis, three times weekly, until her death from GI bleeding, perforated diverticulitis and post-operative sepsis. Dialysis was stopped only when her death became inevitable. That was twenty years ago. Now, at the age of 90 and with Stage III CKD (no symptoms), I wonder if I would want to be tied to a dialysis machine should "uremia" make its presence felt.