I completely understand and respect the idea that you may not want to prolong your life. However, what baffles me is that the problem you see with a pacemaker

I completely understand and respect the idea that you may not want to prolong your life. However, what baffles me is that the problem you see with a pacemaker is the fact that it could malfunction and kill you. Is that the right understanding? And if so, why is that worse than your body malfunctioning and dieing on its own?