Miss Manners: Why is everyone so obsessed with being thanked?

Dear Miss Manners: Why is it that people see it as mandatory to send a thank-you for a gift? It seems like people give gifts ...

Miss Manners: If you adopt my gift-giving philosophy, you’ll never fret about thank-you cards

Gifts, to me, are not a chore and not an obligation. If I get a thank-you card, it is nice, but I do not see any obligation ...