No, Jeremy Lightning, Jackie doesn't have to go out there and parade her body around at that age, well at any age actually, but she obviously wants to. Jackie has clearly put in all the hard work, sacrifice and dedication to develop her muscular physique, so why not go out there and show it off. Show the world that a woman of any age can be strong and muscular and still be beautiful too.
I like muscular women of all ages and body types, but there's something about older(especially 50+), more mature, muscular women that I find very appealing. I wish more women in general, but older women especially, would take up bodybuilding.