I am in agreement with the others. Not everyone shares an interest in quilting. When I was younger, quilting was the furthest thing from my mind. I remember my grandmother wanted to teach me knitting and crochet. At the time I had no interest. Yarn, needles and crochet hook sat in a Knitting bag she had given me. One day, I saw a poncho that was crocheted. I asked her if she could teach me the stitches again. She did and I was hooked on crocheting. Taught myself fancier crochet stitches. Once I had them all down pat, I ventured onto other things macrame (made a hanging lamp table). Now quilting. I am teaching myself, and I love it, relaxing and being creative with fabric.
Don't push her, if and when she is ready she will turn to you.