People quality has been on the decline for a long time...
Didn't anyone see the movie Idiocracy? We're already there.
I'd be surprised if the Continental Presidents Club didn't have a list of rules for attire and behavior. I know United does for the RCC, unfortunately it's buried in the united.com website and not usually enforced.
I honestly wouldn't mind seeing both dress code and capacity enforcement (for non-members) for the future United Club. Frequently there are too many people inside the various Pres Clubs and RCCs I've used. It's become the hidden gate area with kids running around, rude and inconsiderate patrons. And the snack bars are usually gross, especially during high traffic periods. I now stay away from the cheese and veggies during busy periods because I see people using their bare hands to grab food items. No thank you. And wow, I wish parents would either 1) not bring their kids inside the lounge or 2) at least try to control their children.
If it would mean fewer inconsiderate animals inside and a nicer atmosphere with better food/drink offerings, I wouldn't mind seeing enforcement of rules and higher priced day passes to keep the riffraff out.
As for on board, it's a lost cause. And dressing up for a long haul seems silly, unless the airline is providing pajamas. I see nothing wrong with comfortable and neat (no Wal-Mart attire).
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I long for the day when we're finally one single airline, so we can be done with the lame UA/CO bashing on both forums.