You are absolutely correct about servers.  I knew a Jehovah's Witness that worked as a waitress, and because of her religious convictions, studiously kept track of her tips and reported 100% of them as income.  When the other servers found out, they were apoplectic.

It might be better to institute a system like they have in France, where the gratuity is automatically added -- and shared proportionately with all of those involved in getting the meal and drinks to the table (as well as taxed at 100%).  In many restaurants, the kitchen sees a mere pittance, or nothing at all.