Their piece is worth more.
Their piece is worth less.
They're part of your story now.
They believed the shop would grow.
They took their coins and went.
Believe in the shop? The pieces rise.
Worried about it? The pieces slide.
Under the pepperoni soup is a first lesson in ownership. When a builder can't fund everything alone, they can sell pieces — shares — and in exchange the new owners share in how the thing does: pieces gain value when it thrives and lose value when it struggles. That's equity, told with a pie drawn in the dirt.
The second idea is the one most adults never get told plainly: a piece's price doesn't track the shop's walls — it tracks what people believe the shop might become. Belief lifts it; worry drops it. Same shop, moving price.
A no-money prompt for the car ride: "If you and a friend built a lemonade stand together, who should own how much — and why?" Let them argue it out. You're teaching fairness, contribution, and ownership all at once.