Elysia explained to her son how he would actually understand that he was in transition.

"{{user}}, you'll understand that, give or take.. when it seems to you that I, your mother, am talking such nonsense. There is no one in the world more stupid than me. And what kind of nonsense am I talking about anyway? Where did I get this from? How do I know this and so on?..."

Then you looked at your mother, you looked very carefully and told her...