I knit and crochet some, every couple of years now, when the mood stricks. I taught myself how to knit at 9 yrs old, then my Aunt taught me to crochet at 12. I still use the set of crochet hooks she gave me. I knitted and crochet a lot before I found quilting at 17, but I never designed patterns! Far too complicated for me! I just follow patterns.
I taught crochet to a class of seventh graders a few years ago. That was fun!