This reminds me of an argument I got into at a bar with someone who claimed robots would inevitably replace bartenders. I took the view that bartenders would be the last occupation to be replaced by robots because if the goal was to minimize the cost to consume alcohol people wouldn't be coming to bars in the first place. There's a misconception that jobs with higher pay and more prestige will be the last to be repla…
Many bars will have a tap where you place a cup and click a button and it will be filled. Every Starbucks I've been to in the last year has had a fully automated coffee machine. The barista places a cup and pushes a button. The same for filling any sort of cup and fastfood chains. It's either the customers job or the clerk pushes a button and leave it to fill by itself.
I think this furthers your point: The people behind the counter aren't there to make your orders. They are there to take and deliver the orders with some amount of human touch.