[EGOLDEN]

I think people should hang it up when they begin to hinder the performance of others or take away from others' enjoyment of volleyball. There is nothing worse than having an immobile 65 year old statue on your team. I also think that people should hang it up when they have aged to the point that their reactions are no longer good enough to adequately defend themselves on the court; in short, they become an injury risk; and not only to themselves. A group of players should not have to hold back, if you are on the court, then expect people to 'bring it'. If the older ones don't like it/can't handle it, senior yoga may be a more fitting activity.