Some places will add in 'mandatory gratuity' at a set percent if the group is 6 or more, 8 or more, etc.I've never heard of a mandatory gratuity. If I entered a restaurant that had such a thing I would turn around and walk out.
9 times out of 10 the service gets worse once that is triggered...
IMO a tip is something that's earned... decent service gets 10%, good/great gets 15%, and exceptional will get 20%.
