In Gary Jennings' historical novel The Journeyer, Marco Polo passes through a town in Persia called Kashan, which is famous for its good-looking boys, who are typically raised and trained to be rich men's bed-boys. (Because that is a route to upward social mobility, in a time and place where few other routes are conceivable.) The process involves sleeping with an ivory device in one's rectum, and being buggered by one's elder brother as often as he can manage it.
THAT is grooming.
Hanging a rainbow flag in a classroom is not grooming.
Having books with gay characters in the school library is not grooming.
THAT is grooming.
Hanging a rainbow flag in a classroom is not grooming.
Having books with gay characters in the school library is not grooming.