Over the past few months I frequent people poppin places and sketch. And at least once a day I end up chatting with a stranger about drawing, art, famous artists, etc. I love that. I wish there was a big sign on my back that said lets talk about art!
And I'd say about half of em say "I can't draw". "I wish I could draw". I then reply with it's just like everything else, practice. And I also like to drop that quote about everyone having 100,000 bad drawings in them. So ya just gotta draw more than 100,000 drawings and boom! They usually look at me like I don't know what I'm talking about and move on.