This is going to be a tough sell, man. I tried to get my brother into CF over WoW or DAoC, and he was enthusiastic to play and I was enthusiastic to teach him. I wasn't pushy at all, I sat right next to his ass for an hour, talking just enough(not to toot my own horn but I'm a good teacher), and you could sense his level of enthusiasm die as the hour went on.

It's just a tough switch, now if she has mudded before, you have a shot. If not, the only thing you got going is the mother-child bond.