grandpa and grandma saving for their future

At 55, many would want to slow down, withdraw their CPF and take life a bit easier. Some will live longer, some will get badly ill, and some will die the next day. The number of people dying the next day or before hitting 60 will be as many as those with serious illnesses associated with old age. At these age groups, or older, when the body is malfunctioning, what is there left in life to carry on? What is life if one is bedridden or have to spend every cent in one's savings or Medisave Account? Would it be better to use the money to enjoy the last few years and let nature takes its own course? But at 55, if one has some time and want to keep oneself occupied, and continues to work, one is expected to continue to contribute to the CPF/Medisave. And when the Medisave account exceeds the legally provided limit, one is still compelled to contribute only to see the money overflow into a Retirement Account to be rationed to you. At 55 or 65 or 75, what is there to save when one can kick the bucket the next day or next moment? Technically, if one continues to work, even at 90 or 100, one still must contribute to CPF/Medisave. How ridiculous can this be? Is there anyone thinking?