Why should tourists leave a tip?

Yeah, the tipping system sucks. But don't be that tourist stiffing waiters.

Every now and again, there’s a flare up in (mostly) European tourists complaining about US tipping culture. American wait staff share stories of Europeans stiffing them on the customary 20 percent. Some Europeans themselves decry the practice, refusing to take part in it because it shouldn’t be the customer’s responsibility to provide wait staff a livin…