I do not need a diaper.
Yes, you do – but just for overnight. During the day, you wear underwear.
My bladder is not big enough. It makes me sad.
That’s normal at your age. It still has some growing to do.
It’s not normal.
Don’t worry, it will grow. You know, sometimes even my bladder doesn’t make it all the way through the night.
[Stares at me in horror]
Do YOU wear a diaper, Mummy?
Whither Earthlings 