Yeah, I was in 7th grade in 1983. I remember my kind old lady English teacher, Mrs. Bowman, showing me one of the flyers with all the "D&D teaches ASSASSINATION! VOODOO! DEMON SUMMONING! etc" on it and asking me about it. I laughed, but it was definitely a thing that affected our local culture. I believe they tried to ban playing D&D at recess and lunch, but it never took with us.
OTOH I also remember Time-Life's series about all the fantasy stuff having a demon summoning ritual in it, and a few of us got some chalk one day only to find that we couldn't inscribe a very circular circle on the ground, soooo no luck for us.