Prevention

The son, who had recently started school for the first time said, "Um, my favorite color is pink."  He hesitated.  "Is that okay?"

"That is just fine, baby," his mother said.  "People are allowed to like whatever colors they want.  No one can tell you that you are wrong for liking a color.  People can have different opinions about colors, but just because someone has a different opinion doesn't mean yours is wrong."