Abstract

This chapter provides a philosophical overview of different approaches to age and aging. I challenge the belief that our age is always determined by the amount of time we have existed: chronology. I propose there are different views on age and aging. Biological age, which can be estimated based on epigenetics, might be more useful and important concept than chronological age. I suggest that sometimes some people should be allowed to change their legal age to reduce the harms that come from unjust assumptions related to old age. Changing legal age could also be used to fight ageism, discrimination based on age.