In my opinion, all animals, including humans, have the survival instinct. And throughout history people have been searching for 'the fountain of youth'. People want to live forever.... BUT!! for the unpleasantness of getting old and weak and failure of the organs. Therefore people would generally say they would like to live up to 70, 80 or 100 etc, PROVIDED that they remain HEALTHY.
There is no point of living to be 100 if you are a vegetable hooked to a life-supporting machine and requiring people to look after you like a baby. Adam lived up to 930 yrs. And he was still making babies at 130! Imagine if you can live that long.... in the end it must be boring. You'd probably have done everything there is to do, experienced all there is to experience. And the world would probably become so damn crowded because people just refuse to die!