in this point in human history there is no need for one to live forever. it sounds romantic and the science fiction and fantasy genre is full of immortal characters. however the teadium and repetitiveness would eventually become unbearable. this and the fact that human population seems to be expanding by about a billion every thirty years or so. there would come a point where resources and space would become depleted.
until we as a species develop the ability to travel from and colonize beyond earth, there is no need for immortality.
once we set sail out past our solar system into interstellar space then there will be a need for immortality or some form of stasis to offset the time it would take to reach out into that immeasurable vast distance of space.