For me it’s a little less haphazard, but I’m guessing this person has lived something of a life of privilege and is probably significantly younger than myself.

I had an ex who was arrested because a gas station employee accused him of not paying for gas after he declined the receipt. Grocery stores and department stores, I want a receipt because there’s too much bullshittery and asshattery going on at those types of places for me to go without. I want to see when Walmart charges me $5.99 instead of $3.00 like it said on the shelf and I want the money back on my card when I inevitably have to do a return. Restaurants, I want my receipt because unfortunately some of the folks who run the card will “accidentally” miskey the tip amount, and strangely it’s always in their favor.