I dont buy underwear without second guessing myself - I guess if I'm not the one having to pay for it or change it I dont know why I'd care if someone else changed their minds about their resort.
That would be me. Why do I wonder, why do I have buyer's remorse? Because I can.
My question would be: Why does anyone care if I change my mind? If someone is paying for my stay, I welcome their questioning my decision. If they're not, I have it under control, thanks very much.