Sometimes people un-ironically say such things about dictionaries. I would note ...

Sometimes people un-ironically say such things about dictionaries.

I would note that there are such things as "children's encyclopaedias"; I might have had an earlier edition of this one myself as a kid: https://www.amazon.com/Childrens-Illustrated-Encyclopedia-DK...

(I wonder if they still put in the cartoon of the Aztec Blood Sacrifice?)