> > They keep them in while ordering and paying for things in stores and supermarkets.

> As a GenYer I find this rude and I'll take them out any time I interact with someone.

I don't take my headphones off while paying for things in a supermarket - because you aren't really expected to talk or listen in this scenario, and the cashier doesn't want to interact with you either. But for anything more involved, like ordering something in a coffeeshop - yeah, absolutely.