When Square asks you if you’d like to tip, declining can feel petty–especially under the expectant gaze of service workers.
While I always find tipping policy a weird mystery in other lands, I suppose we’re a bit confused over here too:
Square and other POS systems are drawing attention to the fact that our informal gratuity systems have never really made sense. Delivery drivers receive tips, but plumbers don’t. Manicurists, yes; dental hygienists, no. The bartender who opens your beer expects an extra dollar or so, but the baker who iced your cupcake doesn’t—or, at least, didn’t until recently.
Source: Square is designed to guilt us into tipping basically everyone