Hey Jim, I bought my daughter a 90 Cherokee. Nothing fancy. She helped a little in fixing it up. Of course, my daughter is older than yours. And I needed to get her something so she would leave MY Jeep alone. But she took mine offroad a couple times and decided she wanted something 4x4. I thought about it, and decided the XJ was a good choice. They ARE somewhat durable, bigger than the Metro I always threatened her with getting. So I get the piece of mind of her driving a larger vehicle, that isn't HORRIBLE on gas (though not great), but gives her 4x4 for inclement weather. Doesn't hurt that her boyfriend has a XJ also.
We will be going on a local club outing later this month and she will be driving her own Jeep offroad for a change. Shoot, we're almost a club already, her XJ, my ZJ and my son's Ranger almost done...
Now if I can only figure out WHY she put that damn Hello Kitty sticker in the back window...