My 12 yr. old great niece is into quilting! And, when I go to the Houston show, I have noticed a range of ages with lots of moms with babies in strollers.
Plus, a lot of the Houston area schools do field trips to the show. I "happened" to eavesdrop on one group and heard several of the kids, both boys and girls, commenting on how cool the quilts were and was it hard to learn to do them.
I think quilting will always be around. Its popularity may ebb and flow but we will always have quilters!