Earlier quoted context omitted.
Which requirements are you talking about, specifically?
Airlines enforce minimum check-in times of 1.5 hrs before domestic flights and around 2.5hrs for international flights. With international flights, they love to have you wait in line to check in and get your ticket with an actual person. They won't let you print off your ticket online, or when you purchase it half the time with international flights. They do this because they know that people can be stuck for 30-60 m…
Most clubs have showers, free wifi, numerous power outlets, free snacks and adult beverages and, most importantly, a quiet place to relax before your flight (and none of those annoying "The TSA has recently blah blah blah blah" announcements over the PA). Many airlines offer reciprocal benefits with other airlines' lounges (for example, when flying on Alaska, you can use the Boardroom at an airport without an Admiral's Club).
Earlier this week I had to catch a flight departing at 6:15am. Instead of waking up at 3am, I spent my mandatory pre-flight airport time taking a shower (shampoo, soap, a razor and, of course, clean towels complements of the lounge), eating breakfast (free coffee, muffins and an apple) and catching up on email.