The way it is here, employers are basically sharing the cost of their employees with their customers. I find that it makes me less likely to tip voluntarily (I don't tip at places where I know they're making at least minimum, like coffeeshops and such) unless there are extenuating circumstances. So I tip the guys drying my car at the carwash in the middle of winter, for example. In general I assume if I'm paying you $2 to pour a cup of coffee for me, your service is paid for in the marked-up price.