As most any competent economist will tell you minimum wages do nothing for the beginning or low end workers. If yo raise the $8 worker to $15 then all those between $8 and $15 will demand increases and those from $15 to where every (especially with union contracts) will also what a raise. The bottom line is within a few years the purchasing power of $15 will be the same as it was before at $8 so there is no gain. Also with cheaper and cheaper tech the cost benefit from automation gets better and better The current order takers only push buttons and make change. Flip the terminals around and let the customers enter there own orders. How many stores today have self checkout lanes so the concept is not new and at some pay level that is what will happen.