Retirement should be a focus for these types of activities. Things like tending a small garden, or playing with grandchildren.
My father is 65, my mother in law is 59, and my father in law is late 50s (my mother passed away recently at 59). All three of them must still work full time because they can't afford to retire, preventing them from helping with our 1 year old (causing us to have a limited support system, which I supplement with a part time nanny).
But heh, GDP!