But, if tipping is mandatory, why not just advertise the real price? Take a cabe ride for example: I pay the driver to take me from point A to B. He (or she) completes this task, and I pay them. Very rarely do I feel like I have received exceptional service, and often the drivers are rude and impatient. But I have to tip at least 10-15% or I'm an asshole.
Maybe we'd all receive better service if we stopped compulsory tipping, and instead only tipped when we receive good customer service.