The first movie was about Samantha...the wealthiest main AG character

The second movie is about Felicity...also a well-to-do main AG character

Now with Emily being the next book, it looks like Molly will be the third movie. Although not specified anywhere, Molly's family is probably upper-middle class. Her father is a doctor, they live in the suburbs, they have a hired housekeeper and all four children each have their own bedrooms.

Does anyone see a pattern here?