My sister taught me the basics in a week. Then she went back home and I bought a book and taught myself the rest. Sometimes I still have to get her to help me as I think I read patterns how I want to not as they are written. I have been crocheting for 4-5 years.
I'm 40 and have been crocheting for about 4 years now. Or maybe 5, would have to ask my teacher! One thing that amazes me is I get a lot of comments on how I am too young to crochet. I know I look a bit younger than my age (and the official story for most who ask is 21 : ) ) but really, how young is too young to crochet?