We've done that, and it didn't go over well - lots of complaints about not being fair across the board and discriminating against our younger members.
I don't know Robin- at times I feel that ageism is going on in the other direction~ that it's the over 18-21 age that is getting cramped.
~~McKinsey~~
"Men have forgotten this truth," said the fox. "But you must not forget it. You become responsible, forever, for what you have tamed."
~The Little Prince; Antoine de Saint Exupery