I do wonder sometimes if it's a gift or a curse to know that your eventual death is coming soon. Death is such a weird concept that at least I personally feel I lack the hardware to fully comprehend or be at peace with (as of right now anyway).
Isn't the fearsome part of dying just the pain and sickness though? Those things can exist as a chronic state that doesn't lead to death, so I'm not sure it's dying that one should be afraid of...
In some countries like Belgium, unbearable pain that doesn't lead to death is sufficient cause for an individual to be granted assisted suicide performed by medical professionals.