I am 47. I have made quilts since I was 13. I don't consider myself a quilter but rather someone that sews. Quilts are just one of the things I sew. Both of my DILs asked me to teach them to sew/quilt. They were each in their early 20s at the time.
I will say your husband is not alone. I went to a quilting retreat in March and my husband made a comment about " a bunch of little, old quilting ladies." There was one woman younger than me there. I think part of that is due to how difficult it is to justify taking that much time away from your family.