"of course" becoming more common in usage

asked 2020-06-01 12:08:45 -0400

I have noticed that younger people are responding "of course", instead of "you're welcome" when being thanked for service. Examples would be thanking a worker at Starbucks when receiving coffee, or thanking a co-worker for help on a project. My son says it when I thank him for doing the dishes. I wonder if a character on a TV show uses it a lot or how it seeped into popular culture. Did I just miss this for years or do you also notice the change? Any idea of what caused the increase?

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