Depends on what part of the world you're in.

Agreed.

You sure you should really be hoping that when flying UA?

You people do not know what you are talking about.

TO be a first class passenger you need to have balls of platinum (or gold if you have been upgraded because of elite status).
Then you need to have 3 carat diamonds instead of eyes.
Finally, you need to have strnds of paaladium instead of normal hair.

If you do not have either of these attributes you will not be considered a FC pax.

Ciao, time for me to polish my eyes, uh I mean diamonds

I suppose I fit the 35-55 male traveling alone demographic, but I rarely wear a suit flying domestic. I have a rollerboard that I carry that fits in the overhead wheels first on most aircraft and a computer bag that fits under the seat, because of the actions of a lot of F pax cutting in line so they can put their suitcase in sideways and their computer bag next to it, occupying 80% of the overhead bin. I know they are entitled to the space, but the line cutters really get under my skin.

I have devised a rather easy way to deter these line cutters..I hold my computer bag on whatever side the line cutters are approaching, and kind of hold it out in front of me a little so it almost touches the person in front of me so no one jumps me. It might look awkward but it works.

If I check a bag, which is rarely, and don't require any overhead space, I will board as late as possible..after all, those are usually longer flights and I want to minimize time spent in the plane.

I do more business in Dockers and a polo then I ever did in a suit and tie. What works for you may not be what works for others.

I'm sure this is true in a lot of professions, but I'm in law school and I can assure you that a suit is often non-negotiable attire with the more traditional law firms. The firm I clerk for is more casual, but when my boss has an out-of-office meeting, he wears a suit.

A suit is also standard attire for court. Some judges explicitly state in their rules they require a suit (and often require a skirt or dress for women), while others rely more on custom and word of mouth to let it be known a suit is required.

If I were to show up to my Moot Court semi-finals next week not appropriately dressed in a skirt suit, pantyhose and dress shoes, I wouldn't be allowed to argue.

I guess that's why I "question" the suit wearers. I, quite simply, wouldn't accept a job that required me to wear a suit on any but the rarest of circumstances. I guess I'm at the point in my career where I'm over judging someone by how they dress vs. what they've accomplished. I can not think of any business meeting that I could possibly have with anyone where I would "expect" them to show up in a suit.

Alright, I'll give you that one. I'm somewhat narrowing my scope to North America here. As always, when in Rome.....

Aloha, and welcome to FlyerTalk, Ailine!

My attorney wears an Aloha shirt!

Suit? I got married in one 39 years ago. Have not owned one since.

Still, my incredibly distinguished good looks, suave and debonair manner, and insouciant laugh guarantee that no one so much as bats an eye when I elbow my way to the front of the F line over old ladies, mothers with children too slow to complete pre-boarding on time, and make my way to the middle seat row 27.

Thank you for the welcome!

That must be the Hawaiian equivalent of the oil and gas attorneys I know who wear cowboy wear not just at Rodeo time - boots, a hat and a bandanna stuffed in the pocket of their suit. Bonus points for the string tie. Casual Friday for them is Wranglers, a shirt with pearl snaps, and a can of Skoal.

I love being from South Texas. A shame I can't get away with the same thing.

Well I am glad as a health professional in SFO I can wear my aloha shirts, comfy and cheap costo dockers, and it all goes quite nicely with my full beard.
New patients sometimes smile when they first meet me, but with a full panel of 2000 patients it could not bother many folks. On a recent weekend to LA
I burned several e500's to upgrade. Dressed in my "work" attire sitting in first,
an elderly woman boarded (headed back to orange county maybe), walked passed me and said to her husband loudly " he does not look like he belongs in first class ", I turned and replied:" thats odd I think you look like you belong in first class, but why your headed back to coach". The FA who was talking this all in could not help but lol.

Does first class even have lavs? The average F flyer is above such base bodily functions. Instead of feces, they emit the smell of roses.

There are other uses for lavs, some of which are inappropriate for discussion here.