Build a Menu for Bytes of China questions

Maybe I don’t get the point of the exercise, but in the first task why would the restaurant “Bytes of China” create a database schema with a list of restaurants? If they want to set up their own database system, why would they care to have a list of restaurants and their reviews? Or is it meant to be a table with only one entry “Bytes of China”?

https://www.codecademy.com/paths/design-databases-with-postgresql/tracks/how-do-i-make-and-populate-my-own-database/modules/designing-a-database-schema/projects/restaurant-database-project-with-postgresql

I think it is just for exercise, but in the real world, maybe they would want to know what sort of competition they’re up against? Maybe they just want to know whether they can share staff with another restaurant?