I am 71 ----HOWEVER I started quilting when I was 26 -mostly to keep my sanity while I had 3 little ones. I started teaching quilting when I was 36 --and still teach classes. Point out that when you have your kids a bit older you can make some $$ with your quilting skills. After the kids grew up I wrote my first book when I was in my late 50's and have now had 4 published. Have taught at Paducah and Nashville. So tell him its NOT an old lady thing to do. Lots of opportunity out here in the quilt world. You can design and publish patterns, teach etc. I guess I was lucky to have a husband who really understood my need to create. Besides there are guys who make their living doing what we do. Ricky Timms, John Flynn and Michael James come to mind. Quilting is not an "old lady" thing, our quilt group has members from 16 up to 89.
Really just though of something--you very well could be a grandmother. I became a grandmother at age 39, so hey, your right on schedule--grin Keep on stitching and enjoy the process.