In America a "tip" should be understood as a compulsory wage supplement paid by the customer. It can often also include a traditional "tip" (i.e. for good service).
Once you use this definition, everything becomes much simpler.
I know this, but whose responsibility it is to clean up this legacy construct that comes from prohibition time, has no good reason to exist today, and causes misery on both sides?
Once you use this definition, everything becomes much simpler.