Just bought a 2m section of flexible tube for a gas stove, and the sales clerk asked first for my phone number, to which I replied “I don’t have one”. Then she asked me for my name, to which I replied “I’ll pay in cash”. She then insisted it was so “the cashier will call you by name”, to which I replied “I’m not giving you my name, I’ll pay in cash”. [Edit: she apparently got a bit upset when I refused to give info, but ended up entering “no name” according to the receipt]
Am I wrong for not wanting to give personal data for an item paid in cash, in person? No other hardware store ever asks me for my personal info.
I work at a retail store where we ask customers to give us some personal information. It genuinely does help as a proof-of-purchase if a customer wants to return something but has lost or forgotten their receipt. We can just look it up and handle their refund as usual.
However, I never push back if a customer simply doesn’t want to provide that information. I consider it a personal privacy issue. It’s completely reasonable for customers to be suspicious when data breaches happen every day. You are doing nothing wrong.