Are that many people returning items for any reason other than the item not being as advertised in some way? If I don't get the item in the state that it was ad

Are that many people returning items for any reason other than the item not being as advertised in some way? If I don't get the item in the state that it was advertised in, I'm already getting a refund one way or another: either through the seller or by doing a charge back on my credit card if the seller drags their feet for more than a few weeks or is giving me BS. And I just flat out won't buy from a seller that won't shoulder the responsibility if the item is damaged or defective. I suppose some people might return an item because they changed their mind or misjudged what they needed, but I online shop a lot and I've literally never demanded a refund for something like that. Surely it can't be that bad...