Why is it so hard to be courteous?

A popular discussion on ABC Radio recently was about poor attitudes and poor customer service in cafes and restaurants around WA.

I often agree, BUT what about poor attitudes and rudeness by customers that I see all too frequently.
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As a customer, maybe if we try saying "thank you" when the food is placed before us or just thanking the chef or cooks on the way out if the food was good? Or maybe putting the newspapers back from where you got them when you are leaving, rather than 'hiding' them on your chair from other customers?

Not hard to be courteous really.

We should all try this sometime as I find most of the young people serving me at cafes are really nice, happy and engaging-if you let them😊.