My son will be three in May. We only just got around to potty training him. He was genuinely surprised to find out that liquid comes out of his penis. The nappy

My son will be three in May. We only just got around to potty training him. He was genuinely surprised to find out that liquid comes out of his penis. The nappy (sorry, I'm British) is so effective at absorbing liquid that he had no idea. A week in, he makes it through the daytime without wetting himself but number twos are catching him out frequently which is fun to deal with.