Ella – I wish I was a grown-up.
Me – Why?
Ella – Because then I can stay up later.
Me – You can stay up late sometimes.
Ella – But I want to stay up late all the time!
Me – Grown-ups need less sleep than kids, that’s why they can stay up later.
Ella – Are grown-ups tireder?
I managed to stop myself from saying that most of them probably are – and I definitely am – and instead explained that kids need more sleep because they are still growing and growing takes lots of energy.