(I agree with you)
You will be entering a lot of information into your personal preference database based on your purchases. Amazon will target you with ads and also sell your information to others. Did you buy beer or a girly magazine? maybe something that the FBI would be interested in.
No thanks, I rather be free.
Unless there was some option to clear the store’s record of what you bought, once you’ve paid from your account.
These issues can arise with loyalty cards too. They want to know what you bought, maybe so they can issue coupons for similar things on future visits.
An FBI that is going to care is one that’s suffered fatal mission creep too, and would likely be busybody in many other ways.