Most men have drifted toward the casual end ... and a straightforward suit and tie requirement is easier to decipher than “creative cocktail attire” (whatever that means) and yields better ...
So are crisp neckties, flowy topcoats, pleated trousers, sharp button-ups, polished loafers, and all other manner of dressy ...
Suits will have evolved into something different ... At Coutts, we still have policy that men should wear ties when they see clients. I don't think that will change in the short run.