We always tagged our age to ability to do or not to do something, such is the social norm and perception of people. Such perceptive changes in different society and different family.
People thought of running as something that is detrimental to joints and body and often too old to start after a certain age. Well, there’s always example of people only started to jog after certain age.
The granny here started after 50 years old and she is continuing to complete marathon at age 90.