I used to lucid dream a lot. When I say alot I mean it was rare for me not to. This went on from about freshman year of high school until shortly after I got out of college. I remember being part of a conversation in college on dream states and being surprised other people DIDN'T lucid dream.
I still do on occasion, maybe once or twice a month and I sometimes wonder what changed that led to the decrease. *shrug*. I'm just weird I guess.