I still don’t see any other suggestion from you. I thought it was a fun way of opening the story by referring to kids. I can’t see how that would work with any other population, species or scenario.

Focusing on such semantics here looks like you completely missed or ignored the point of this read. And that it’s written in a simple, entertaining way for those that don’t have a good background in maths. That includes young children, me and you.

There are larger infinities. There are types of infinities, infinity amount of infinities as well as infinite hierarchy of infinities. Think cardinals and ordinals.