Maybe not so much an aversion as never been taught how and am kind of scared of the prospect!!
My mom used to sew all the time when I was little and she "made" me learn. I do not sew often- it's sort of like knitting in that it doesn't save you any money! I think in the "olden" days it did but there are so many beautiful nicely made fabrics to choose from and it is a profitable craft, like knitting, that manufacturers want to make money! Imagine that.
I do not sew super fancy things but I can produce a nice looking product. I'm an expert at curtains and Halloween costumes! Once in awhile I have visited sewing machine shops and drool over the nice machines but I do not feel that I sew often enough to make such a purchase. I sew on a very servicable Viking from the 1970's that belonged to my grandmother. I enjoy using it because I always feel she is helping me sew. So even if I did get a new machine I wound not part with this one.
Anyway many fabric stores offer classes and usually if you purchase a machine the shop will offer a series of classes so you can learn to use the new machine- even if one is an expereinced sewer, so that is a good way to begin. I think those people who are craftily inclined would enjoy sewing at least small things. I am a new knitter and I found that understanding sewing and fabric types helped a bit to get started, beleive it or not. So I think that if one is a capable knitter they would find sewing very easy. In fact if you can knit a sweater, sewing has got to be a breeze! Sweaters look daunting to me, I haven't tried one yet! Sewing is just learning to use the machine, learning terminology, and following a pattern.
Anyway, thanks for the insight on making felted bags.