What are upgrade hierarchies?

An upgrade hierarchy is like a line of people waiting to get bigger shoes when they grow, but not everyone gets them at the same time.

Imagine you and your friends are all playing a game where you can upgrade your toys. But there's only one special toy store, and it can only help one person at a time. So, you all agree on an order: first, the friend who needs the biggest upgrade goes, then the next, and so on.

That’s like how upgrade hierarchies work in some games or systems. It helps decide who gets upgraded first, so no one feels left out when there are limited upgrades to go around.

Think of an upgrade hierarchy as a lineup for the best candy in the class. The teacher says, "Only 3 kids can get the biggest chocolate bar, and we’ll decide who goes first based on how long they’ve been waiting."

So, if you've been waiting the longest, you go first. It's fair, simple, and makes sure everyone gets their turn eventually.