Miss Manners: Send gift to niece who didn’t invite me to her wedding?

Democracy Dies successful Darkness

Dear Miss Manners: We request large publicity to get crossed a substance of etiquette for performance and theatre attendees: WAIT UNTIL THE CURTAIN CALL IS OVER AND EVERYONE HAS HAD A CHANCE TO TAKE THEIR BOWS BEFORE STANDING. ONLY STAND AT THE VERY END — AFTER THE PRINCIPAL ACTORS TAKE THEIR BOW.