> Is there a reason healthy 75 year olds can't take part in caring for the infirm? Given o lot of people are giving up on marrying/having children, I believe t

> Is there a reason healthy 75 year olds can't take part in caring for the infirm? Given o lot of people are giving up on marrying/having children, I believe the main reason is (or soon will be) lack of remaining close people in the appropriate age bracket.