Basically people take for granted that they belong to the middle of the Gauss curve and forget this is neither true everywhere nor carved in stone, and certainly not consequence free.
Not to mention mass spying, which apparently every body is accepting now.
It feels like in the 30', where everybody is smooking cigarets and are think there is no problem right now with it, so they people raising concerns are not to be listened to.
"There's no need for privacy because I have nothing to hide."
Again, it’s a valid concern but the GP was about real world use cases and it seems that’s not really one?
And if this is the concern why not use cash or monero or whatever for this particular transaction, surely the concern does not extend to all other transactions you are making?
Perhaps the person didn't realize it would be an issue. Perhaps they bought something ancillary and they're not that store's main target customer.
But, for argument's sake let's say you can be put in jail or killed for your sexuality. You want to buy something from a specific store that caters exclusively to your sexual preferences. The CC company sells that to your government (or another entity wanting to enforce that), then you are arrested or killed, or you family harassed.