I'm not sure if being a younger age would affect lucidity so much. I've been interested in dreaming since I was young. In most of my dreams I would have control but I usually was never truly lucid. I would often fly and sometimes have super strength. Most of my dreams were not very realistic, in that impossible things often happened in them (they still do) and sometimes I would dream in third person and I was often other characters and not myself. Sometimes when I would be dreaming I would remember events from other dreams, and sometimes I think the events repeated. As I've gotten older I think that my control has gotten better, and the awareness in my dreams.

Now that I'm older I often recognize things that have happened in other dreams, or places I've been. Sometimes when I'm dreaming something will happen and I'll think "That's strange, that usually doesn't happen in my dreams" but then I don't think anything else about it after, and then other times I know what is going to happen. For example, in a recent dream I had I was in the Savannah and I noticed a dead lion and I thought "Hmm, animals usually attack me. I wonder if the lion is really dead" and then the lion got up and attacked me. To prevent the lion from eating me I held its mouth open with my hands, but I was having a bit of trouble holding their mouth open, then I thought "What? I usually have super strength in my dreams." so then it became easier and I just threw the lion off me. Also, in a different dream I had I swam through some extremely gross water, and when I came onto shore I vomited. After that I was like "Woah, that is really weird. I never vomit in my dreams." and then soon after that I woke up because it was morning.

Anyways, I think that the amount of lucid dreams you have depends on how aware you are of your dreams.