Every waiter I know says that they need tips to survive in order to justify asking for tips. Those same people also fight with tooth and nails any argument that perhaps we can abolish tips and give them a living wage.
Real truth: most likely than not, they are making a killing with tips, much more than they would make with a fair salary.
Especially considering that the employer is obliged to pay them minimum wage anyways if they don’t receive enough tips.
The myth of the waiter not meeting ends is hard to believe when a decent waiter can pull in $200-500 (minimum) per night in a decent restaurant.