Growing up and growing old are two of the most significant experiences and achievements of human consciousness that become more challenging as the aging process gets underway. First, there is the ability to objectively (courtesy of the five senses) perceive the existential, physical nature of everything happening around us in the course of a typical day. Second is the ability to subjectively (courtesy of mind and brain) psychologically experience the range and intensity of feeling, thought, and evaluation that give meaning to all such perceived happenings as we move through the day.
Getting older objectively only has to do with chronological age. Growing up is more of a subjective term because it could mean an increase in age, an increase in maturity, or a change of personality.
