I was knitting on the bus this weekend to youth convention. One of the teens who apparently hasn't seen me do it before, said, "Oh, what are you doing?" I said I was knitting.
She gave me a double take and said, "BUT knitting is for old people! You're only 29! You can't knit!"
Of course for all the trouble, she sat and watched me for two hours and kept telling me how cool it was...meanwhile, I was only knitting stockinette in the round...so only knit stitches!
I also taught a friend of mine to knit on the same bus. He's a mechanic, a biker and a carpenter. He LOVES knitting...it makes sense to him.