What is your threat model? Are you buying incriminating goods at the grocery store? What do you gain by putting yourself through all that? Or what are you preventing / protecting yourself from?
Privacy should be the default in free societies.
I can play this game though: you are pregnant, but have not shared that information yet with your family because it's early term and there might be complications. The grocery store accurately predicts you are pregnant from your shopping habits (change in diet, per-natal vitamins, "New Mommy Magazine"). The grocery store snail mails you a New Mommy coupon book as a "thank you." Your family sees this and confronts you, forcing you to reveal your medical status against your wishes.
This is a scary outcome WHICH HAS ALREADY HAPPENED. https://bit.ly/3S3hlrA
They don't have to articulate it, but inability to articulate might be a sign of overcautiousness / paranoia that is having a negative impact on their life.
If one has something to hide - then sure, take extra steps to be anon. Otherwise, why put yourself through so much trouble?
You mean hummus, right?
Or do you mean the store selling of your eating habits pretty much every entity out there. Pretty sure eating isn't HIPAA related, but correlated to potential health.
I agree there is some privacy concern, but I am having a hard time articulating how or why that data might actually impact a person in a net negative way.
I am protecting myself from having more data about me entered into databases.
Why is that important to me? For exactly the same reason that I have curtains on my windows.