Fast food hamburgers can be flipped easily by machine. In fact, the entire operation from order taking to preparation to delivery of product to car window and payment could be automated.
I know an engineer who was hired to work on designing an automated burger cook station in 2006. It was for one of the major chains. To my knowledge it has never been deployed. Either it never worked right or current minimum wage still makes the old way a better deal.
Absolutely true, but the effect gets even worse.. We are now almost employees of every service industry that we interact with..
With the rise in wages at the lowest paid sector of service we now assume their duties.. We pump our own gas, pick up our own food, and cleanup after ourselves in food establishments.. Hell, we even pick up our own mail at the central mailboxes..
With an increase in low paid workers in fast food establishments a further reduction in the other duties will be done, as you aptly point out in more and more jobs taken by automation and less employment by entree level jobs traditionally done by youthful workers..
Young adults have less opportunities to learn to work, than ever before.. Most of the lost jobs do to the increase will further exasperate the problem..