Originally Posted by lawyerdad
Fair point, but to the question you asked: if that criticism is brought up only
with respect to a a female lead character/hero, while the same critics seemed to have no problem with the old farts kicking ass, isn't it fair to draw inferences why the lack of "realism" bothers them so much in one case but not in the others?
In the case of Star Wars, power seems linked to connection to the force rather than age or necessarily physical power (see: Yoda). It is clear that she has a great connection to the force, but her ability to harness it without training is what seems "unrealistic", which is basically what Ataturk said earlier. Luke couldn't lift the X Wing, even after blowing up the Death Star. Rey was able to defeat Kylo's interrogation, and also best him in battle after just touching a lightsaber.
Maybe she had been trained (by Luke) and her mind was wiped? This fan theory would make it all somewhat more plausible.