It's far less sad than watching a family member die slowly in unrelenting pain or lose their mind to Alzheimer's and hate every minute of it reliving that loss of mental capacity over and over and over again.

My mother had alzheimer's. Every time I saw her, multiple times she would beg for a gun with two bullets (in case one mother's misfires) because she had forgotten that she had begged me to help her commit suicide every single previous time. This went on for almost a decade before she lost her ability to speak and was basically just an angry, violent vegetable.