Free book purchases on google play

[AC Question]

Why does google as for a credit card/gift card for free book purchases?

 

[srkmagnus]

Why does google as for a credit card/gift card for free book purchases?

I'm not sure why that would be, but it could be because as a business, Google will want you to spend money on other paid books, apps or services.

That's just a guess. But if anyone has better information, please share.