Do you really go on a cruise to look at other people and what they wear?
When I cruise I look at the ship,the entertainment, the food on my plate and the ports of call. I don't care what other people look like, whether they are fat, thin, beautiful, ugly, well dressed or poorly dressed(whatever that means).I have shared tables with very smartly dressed people who were a pain in the **** and with casually dressed people who were fabulous company, and vice versa. It really is of no importance to me or my enjoyment of the cruise experience.
Enjoy the experience for yourself, don' t worry about what other people are doing or wearing.