Knitting is not that common among the Amish. Most choose to crochet or do embroidery instead.
My mother taught herself how to knit after finding some patterns to make bedroom slippers for her children.
Every fall once all the canning had been wrapped up for the season she would spend her evenings making each of us a new pair of slippers to wear around the house that winter. It was fun being able to choose the yarn from her stash of pretty colors and then watch the slippers being made.
She taught me the basics of knitting, but since I don't enjoy handwork I have totally neglected it, a half finished scarf is still tucked in my craft room waiting to be completed. It was started close to twenty years ago and I'm guessing it will be one of the items that will still be unfinished twenty years from now.