[distances]

Just to check, the parent was talking about online purchases but did you mean physical retail? There you indeed have no legal right for a return, all sales are final as you had a chance to inspect the wares before the purchase.

In practice some stores do accept returns if you have a receipt, but personally I have never done that, didn't know it was even an option before an expat was asking about this online. The default is to sell forward in online second hand marketplaces. Especially gifts you receive, those are never returned (as apparently happens in the US said that expat).