Wow that’s really entitled behavior. When you buy something, the intention is for you to own that item. It isn’t a trial period meant to facilitate an in-home shopping experience. It’s tacky to make it a habit of regularly returning things where the reason for the return could have been prevented.

It costs a lot of money to process returns for a retailer, and that cost is often written down. It’s meant to be an exception during the sales process (not a normal condition) and offered as a curtosey, not a defacto right.