Modern Art?

I was watching a news item about an art gallery in Chicago that helps underprivileged youth to express themselves better and learn how to market their art. For a moment, examples of their artwork flashed on the screen and the kids were in my bedroom getting ready to read and settle down for the night. One of the paintings was a side view of a woman tastefully done and kind of ambiguously nude. Trina said, "eww, gross, that picture had a NAKED person on it!" I said, "That was ok, it's just art!" Trina said, "MAMA, art is NOT naked!"