A close friend is planning her daughter's wedding and has just told me it will be black tie...not just for attendants, but for guests. These are not people who belong to a country club or hang with the Trumps or Kennedys. They are in white collar professions who make good money, but in the 20 years I have known them, they have only worn evening attire when on a cruise. I don't see how we could attend. My husband would need to rent a tux and I would need to buy an evening gown, shoes, etc....probably at a total cost of $400 , and we would also need to purchase a gift. I think it's terribly inconsiderate to put this sort of burden on ones guests. My only comment to her was that she might find many of those invited would be unable to attend with black tie required. What is everyone's thoughts?