RE: never too old
there are a few ladies who train and also compete into their 50s. it really boils down to how the gravity takes effect in a bikini whether some carry on competing.
i saw a older lady over in naples a few years ago and she looked dry and had that grainy muscle look that only comes with years of training and age etc but then she turned around and was wearing a thong!!!!!!!! we all wanted her to turn back around. im not be-littling her here im just saying that women age a lot differently from men and that loose skin on the glutes will dictate how long she competes for, unless she goes with full back bikini pants.