Okay, so, I'm in the beginning stages of developing a mobile application that teaches people to lucid dream and have strong dream control, I'm just trying to get a feel for my audience right now, so if you all could help me out I would most appreciate it!

Can you lucid dream?
What's the hardest part to you when learning to lucid dream?
How old are you? (a range is fine, like 20-25, etc)
Anything else you feel pertinent, feel free to add.

Thanks in advance everyone!