I have a computer science degree. The point is: binary is a boring thing and some what irrelevant to the computer CONCEPT, it only becomes relevant when you delve into logical gates and and stuff.
It's weird that someone would approach a book for kids the same way they do for adults. Instead of painting a top-down, inspiring picture, they start with some boring building block that's arguably not even on the critical path.
https://archive.org/details/beginnerscompute0000unse/page/26...
Or page 10 of Inside the Chip, illustrated with Tron cycles
https://archive.org/details/insidechip00hele/page/10/mode/2u...
It's on the cover of Machine code for beginners, but nobody read that one first. (It's available in full though, BTW.)
https://archive.org/details/machine-code-for-beginners