I've enjoyed reading everyone's stories!
I don't remember learning. I basically have a bad memory all around, not selective to this.
A girlfriend taught me in high school probably when I was a jr. or sr. so in 1964-66 somewhere. I don't remember anything about it except that it happened. I saw this friend at our 40th reunion and she still knits. I told her I knit too and asked if she remembered that she was the one who first taught me? She didn't.
I didn't keep it up after that first exposure. After our our first child was born I learned again when I was about 20-21. I remember I had to walk about a quarter of a mile every time I made a mistake I couldn't figure out. One mistake I remember was learning to do ribbing. I was totally mystified as to why it wasn't working, when I could swear I was doing k1, p1. But I was not moving the yarn back and forth so was getting a terrible mess.
After that I didn't forget again. I had to learn mostly from books and tried to pick projects that had only 1 new skill in them. Later I moved to where there was a yarn shop whose owner helped me learn a lot, then the internet came along and I've learned more.