I guess I was in High School? There were a lot of misconceptions about D&D going around. People just didn't understand.
I never had worried parents. Remember, my Dad was my DM at one point. He knew it was just a game.
A stigma of D&D did exist in high school, but it wasn't really based on it's "evilness," it was based on it's "uncoolness."
All in all, I heard that D&D was "evil" but no one I ever encountered truly believed that. "Other people" somewhere else thought that and they were simply misinformed.