We got Jack one of those decorate-it-yourself toothpaste pump tubes. He & Peter diligently began adding stickers. “Some look like boy stickers, and some are girl stickers,” I said. “Yeah–flowers and hearts are for girls. Skulls and footballs are for boys,” he replied.
As I explained that boys can like hearts and girls can like skulls, he looked at the next page of stickers. “These are abstract,” he proclaimed.
Sure enough, the stickers on that page had no particular theme — streamers, circles, other random shapes. God, I love having a kid with an ever-expanding vocabulary.