Okay, I think I see what you mean. It's just that martial arts are not for her. I'm sure she can benefit from it, but she probably just thinks its too rough for her -- especially if your coming home with bruises. Heck, I wouldn't blame her. I would feel the same way except I grew up with two older brothers and took TKD when I was a kid so I'm just not intimidated. Just let her enjoy watching you do aikido, let her own curiosity build and maybe she'll try it in her own time. But if the whole martial art concept turns her off, there really isn't a point trying to get her to join.