At 59, I'm not ready to call myself a senior yet. Perhaps your group could come up with a more fun phrase. "Gently used" perhaps, like a consignment shop tag. You want to aim at people who might not want the bother of a kitten but are still active enough to cope with the work involved in properly caring for a cat or cats. Mid-lifers for mid-lifers? Must go, I'm at work and being naughty.