About the complains..

[Matsume]

Because their minimum wage (at least in u.s.) is less. The government expects citizens to tip and calculates that into determining waitress's min wage.

were i live its 7.25 and waitress get 2.83 an hour

Here in Paris France, waiters and waitresses can make 3,000 Euro a month full time 35hrs/week and that's WITHOUT tips.
That's almost 4 thousand dollars.

I'm also American so I know how it works in the states, and I am sorry to say that the mass consumption mentality of the united states has led to dumbed down stereotypes used by darkstarpoet.

Tell me this: why are the janitors and waitresses in America treeated so badly as compared to here in France? Why would you imagine a janitor in america hating his life so much tot he point of getting angry for being thanked, yet the janitors here in France smile, talk, and even sit down to drink a coffee with you?

Think about this. This is a HUGE cultural difference.