If you are SO old or sick that you can't physically go out in the Field Ministry then they have the 15 minutes a month provision.
But what about people who have been doing it for 50 years? What if they are just tired and want to retire? Just a though that popped into my brain while reading a post here.
"Wicked" worldly organizations have Retirement Plans because they want to honor the members that gave them decades of service...