When I was younger I did not have lucid dreams. And I can remember trying out dream control but the attempts were never all that successful, for example, I would try to fly but could never get more then ten or twenty feet off the ground. Now (I am 17) I have lucid dreams all the time (maybe 70% of my dreams are lucid) and my attempts at control are almost always successful. I'm flying all over the place now.

I don't know anything about LDs (just joined, never even knew such a term existed before today) but I imagine that everyone is different when it comes to age. I would think that children would be more likely to experience them but I never did (that I can remember) as a child. Only now that I am nearly an adult.