I must be very old lady-like, I crochet and bake cookies all the time. Actually, as others have mentioned, you'd be surprised by how many 20-somethings enjoy crocheting nowadays. I'm making an afghan right now RojoHen
, though I don't know who for. It's taking forever since I work full time now, but I usually find time to crochet on the weekends while watching TV.
Sewing is something that I really see dying out. I don't know many people who can sew, myself included. Many clothes are cheap enough that it's just easier to buy a new whatever instead of mending your old one, and I can't even imagine having the time to sew whole new items.