Believe it or not, I was asked that question today by a secretary in my office!
I have a cool denim long sleeve shirt which Maul's face on the chest pocket. I wore it today b/c if I don't have to be in court, I'm not wearing a suit - I don't like suits So, I walk into the break area to grab some water and some secretaries sparked up a conversation about Star Wars b/c of the shirt. They said they liked the movies, etc., and one said she'd never seen a SW movie. I asked if they liked when Yoda threw down in AOTC and the one who said she'd never seen a SW movie said "Who's Yoda?"
Now, this lady is nearly 30 and has never seen a SW movie. If she were under 20, that would be acceptable - I GUESS!! I just find it VERY odd that someone from my generation has never seen ANY Star Wars movie given the cultural impact that ANH, ESB and ROTJ had on my generation.