You know I don't think so. I'm 50 and just learning to quilt. My grandson enjoys watching me quilt when he is here. I hope someday he will want to give it a try. We he gets a little older and a little less bouncy (he's 4 and doesn't stand still long) I will ask him if he would like to try.
I think there are enough of us out there who will pass on what we know and enough kids out there who will see the value in knowing some of the old world crafts.
No, I don't think quilters are a dying breed.