My Grandma would beg to differ... She just passed away a couple months ago at 98. Some of her GREAT Grandkids are older than she was when she met my Grandpa. She had two GREAT GREAT Grandkids in their teens..
I miss her. She lived in the same house since she married my Grandpa, back in the early 1940s, until just a few weeks before she passed. Being 98 and able to take care of yourself is a big deal IMO.