When something is free to play, and involves you walking around with geo services and a camera on, you and your data are the product.
This is just massive data collection disguised as a video game.
No one signed up to let Niantic read their email in exchange for free items.
Especially parents.
Pokemon Go can collect the bunches of the data it wants without having admin-level access to their users' Google accounts.
No one signed up to let Niantic read their email in exchange for free items.