All air travel should be something akin to what these three young adults (obviously from their actions, not children) experienced.  No ID's needed to purchasing a ticket, going through security, or boarding the airplane.  I recognize the need for airlines (not the TSA perverts) to keep their airplanes safe, so even though there was very little security back in the day, there should be a market-determined answer for airlines to ensure passenger safety.

Also, these young adults are far from children and should be applauded for their self-motivation and independent thinking.  Instead of consuming material possessions, playing video games or twittering their lives away, they got a job, provided a service, earned some cash and enjoyed a day trip to a new city.  Good for them!