I agree too trcruiser. Well said.
Here's a scenario for those who don't care if other's follow the dress code. You and your wife dress in tux and gown for formal night. She's elegantly adorned in the jewels you've bought her over the years. Her hair was professionally done at the salon this afternoon. Your tux is impeccable and your shoes are sparkling.
You are escorted to your table and order a fine champagne for the dinner. In walks your table mates. Sloppy tennis shoes, dirty ball cap turned backwards, greasy and torn T-shirts.
It's their vacation. They should be able to dress any way they choose. Right? For me, I hope the Maitre 'D is enforcing the dress code.