In "Europe" (I'm super generalizing here), to return a product, it has to be in pristine condition, you have to the original receipt and even then they will go over it like you are smuggling drugs into the country. In US, nobody cares. This is built into the business model. You pay higher prices due to returns, but then you buy more stuff because you don't worry about returns.
When I first moved to the US, I was extremely careful with money (didn't have any). So every purchase was carefully planned and I worried about it long after it was done. Then I made a mistake and bought pair of shoes. They were uncomfortable. I felt like an idiot. But I already wore them, so now I am stuck. I told my colleague about it and he looked perplexed.
After bunch of back and forth he decided to teach me a lesson. He took me a to a grocery store. Bought a can of corn. We walked out, he opened the can, dumped half of it in a trash can. We walked back to the return counter. My heart was pumping so hard I was losing sight at moments. He put it down on the counter and said: I would like to be refunded. I thought the clerk is going to smack him silly and me with him. But he didn't even flinch. Gave him few coins and we were on the way.
This was 18 years ago. I since very well adjusted to the system, maybe a little bit too well.