Hello D10S, while I respect your opinion, and tend to agree with you, you must remember times, styles and attitudes change; and while we may not agree with it or go along with it in our own appearence, it is inevitable and we may as well accept it, or switch to the ultra-luxury cruise lines.
I can remember times when women wouldn't think of going to church without a hat and gloves; I can remember when I use to wear a coat and tie to fly. Would I like to go back to those times? Not really. So if a man wants to wear jeans and no tie to dinner, that's fine with me--not my choice--but I sure won't object to his choice.
Just my opinion.