"People buy from other people, not robots."
Really? Have you heard about a company called Amazon? Have you not seen pictures of the Automat of yesteryear? They are making a comeback in a number large cities today, and yes, restaurants are starting to "let" customers order their own wood via touch screen.
"When we start to see medical androids taking care of people instead of nurses, then that might apply."
And you think that cannot, will not, happen? Certainly we will not see robots changing bandages anytime soon, but we are already seeing virtual medicine being practiced. It will not take much to allow a central nursing station to replace 90% of what the nurse does when s/he goes into the room.
"Because it doesn't fit into every industry as easily as you claim?"
Change does not have to come to EVERY industry but every time labor saving changes come to one industry it affect all industries.
Can we agree that because of the need for certain skills, because of certain working conditions, etc. that certain workers should make more than others, that semi-skilled workers should make more than unskilled workers and skilled workers should make more than semi-skilled workers?
What happens to the roofer making $15/hr if the minimum wage doubles to $15/hr? Will the roofer's wage stay at $15/hr? If it took double the minimum to entice the roofer to suffer the heat and brave the danger, will it not take double the minimum wage for that roofer to remain a roofer, or will he stay on the ground and use his proven dedication to the workplace to displace the previous $7/hr worker? No, his employer will pay him more to do the same work. To do that he must charge the customer more for the job. Higher wages without greater productivity = inflation.
Is it not logical for every worker to expect to receive a similar increase as the minimum wage worker? Should the nurse not expect to make "X%" more than the nurse aid who now expects to make "X%" more that the custodian who now makes $15/hr.? Of course, every worker is going to expect an increase. What happens when wages go up without a corresponding increase in productivity? Inflation.
A manufacture sets the prices of shoes at $50/pair because that is the prices at which willing buyers will pay for the total available output of shoes. What happens when a large number of new buyer have new money to buy shoes? The manufacturer will, of necessity, raise the price of shoes to the point where supply and demand are now equal.
"If that were the case, a company like Costco that pays very high wages right off the bat to unskilled workers..."
GREAT! If certain stores can pay more than minimum wage, more power to them. They get to pick and choose from a wider base of applicants. Their buying power allows them to have certain efficiencies that the Mom & Pop store simply does not have. Mom & Pop stores simply cannot compete of price. Maybe on service like home delivery, or actually knowing the merchandise and how to help the customer pick the right product, but not on price. There fast becomes a point that even the extra services are not enough to keep the doors open for Mom & Pop.
"So there's always a labor component in some way shape or form."
Agreed, but it will be the low cost, unskilled, labor that will be eliminated first.