I recommend that you take her to some local shops and help her along with the process of deciding on a firearm. Help her with things to look for like how it feels, functionality, and ect. I'm thinking a good .22LR revolver might do the trick for her, because it's very simple compared to a semi automatic, and it will help her learn the fundamentals of shooting. Not to mention that since the .22LR has virtually no recoil it will help her warm up to firearms. If there's a range in your area that has a rental program I would try that out, and see if she finds anything she likes or atleast has a chance to learn some more mechanics of how a firearm works.
"It's a gun you loaded on Sunday, and shot all week."
"If God didn't create man equal then Sam Colt had made them equal."
"Fast is fine, but accuracy is everything."