[Grishnakh]

>But if I were a betting man, I would bet that McDonalds will replace food prep jobs before replacing humans with kiosks in most locations.

Panera Bread proves you wrong. Go into any corporate-owned store (not the franchise ones, they're behind), and they have iPad kiosks for taking your order. The food is still prepared by hand. They frequently even give you a bonus, like a free cookie, if you order with the kiosk instead of going to the human. And the kiosk does a far better job too: there's little or no line, you can easily look up your old orders or favorites and re-order them, you can easily make changes to your order (more or less salt/pepper, more or less lettuce, different bread selection, etc.) which you can't easily do with a human because the human won't present dozens of different options to you when you order, they just ask "what do you want?". Visual communication systems are far more information-dense than verbal ones.