Is there a difference in front tires & back tires on a Corsica?

Is there a difference in front tires & back tires on a Corsica?

I recently got an oil & filter change w/lube and tire rotation at an establishment (Monroe Muffler, it was the cheapest). They told me that the vehicle had all four front tires...huh.. Later I told someone what the guy said. They had never heard of such a thing...different tires on front than back on a car... expect maybe race cars. So what's the truth, did they just say that since I was a girl? Or is this the 'i' before 'e' except after 'c' of tires?

Thanks, Melissa