I don't have a Rough Rider, but it seems like a good way to go for the stated reasons.
My thought was that a Beretta Neos might be worth looking at. Yes, it is funny looking, but it built really well, is reliable and accurate, and the grip is narrow, very comfortable for small hands. I have young adult daughters, and during their college years and since I have taken several of their friends shooting for the first time, and the Beretta always gets rave reviews. She had a friend who visited from Germany and shot pretty much everything I owned (quite well, I might add) and, when asked what she wanted more time with, reached for the Neos.
It is also pretty inexpensive in case she doesn't stick with it.