Force employers to pay people so much that they produce less than it costs to hire them, and before long, in comes automation and out go jobs.
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So my wife and I are out running errands, and we stop at a big grocery store. As we go through checkout, I see probably the biggest argument against raising the minimum wage I can think of: no cashier.

I look up and down the checkout lanes. Most are self-checkout and bag-your-own. It gets me thinking. When I was a kid, self-serve gasoline was unheard of. You pulled up at a gas pump, rolled over a hose that would “ding-ding” for an attendant, and out would come someone to pump the gas for you, clean your car’s windows, and offer to check your car’s oil level. Today, gas station attendants are almost extinct. It’s almost all self-serve gas now. Also gone are our local movie theater ushers, and our bowling alley pin setters. I’m not old enough to remember elevator operators, but I’ve seen them in old movies. They’re gone too.