The problem with that is its not guaranteed income and most wait staff have to take on a second job just to make ends meet, its becoming more and more common for people not to tip, especially since most European countries do not allow tipping of wait staff since they're paid full hourly wages. Add to that the fact that the restaurant market in the US is also on the decline, since fewer people can afford to eat out. The concept of the "federal tipped minimum wage"($2.13) is just laughable, on an average day at any of the chain restaurants an individual waiter may make a total of $10 in tips from a full 8 hour shift, that's still about $30 short of what they need to equal the same money earned at the "federal minimum wage" ($7.25), and that's IF they aren't required to split their tips with the rest of the staff. The employer is not required to cover the missing $30, so now the employee is short for the week already after only one day. These people have to put a roof over their family's head and food on their own table, wait staff should be paid at minimum the same as other minimum wage jobs, and the tipping should be considered a gift for good service.