Perhaps it was because he had purchased the free version of the Sims, which did not provide an encyclopedia. The Sims Free Version was a novel free-to-read software for novices. Its main feature was that it could read the Sims series of novels indefinitely without paying. However, it did not provide a complete encyclopedia because the encyclopedia had to be purchased. If you want to read the complete encyclopedia, I suggest you buy a physical book or read it online.