While I'm personally frustrated with the travel chaos and have an "all of the above" view to getting control of it (govt mandated fees to customers for cancelled seats, limiting landing/take-off slots until an airline demonstrates competence, etc.), I do think there is something else going on here.
Air travel -- along with other struggling industries -- is a massively complicated endeavor. The number of people, systems, processes and supply chain elements that must come together to get one safely in a seat from point a to point b with a Coke in hand is staggering.
And most every one of those elements requires a pretty highly trained individual to do that job effectively and safely.
Even working a baggage ramp. Not hard to toss bags, right?
No, but to do it without getting sucked into a jet engine with bags to/from the right planes with all of the traveler and security exceptions is a very skilled position. And beyond the literal time it takes to recruit and train someone, it takes time on the job to reach competence.
Now toss in the people who hold the little oranage wands, fuelers, tug drivers, gate agents, call center people, mechanics, pilots, flight attendants, etc and its a serious issue.
I don't know the real numbers, but suspect that across of these industries millions of highly skilled people have become untethered from their roles. And while we can point to senior management and say "they should have known better" the reality is that many of these companies were under severe financial duress and knowing when the situation would turn was nearly impossible. And now they cannot meaningfully shorten the time-to-competence for the workforce at scale.
In my industry we use call center people. Relatively straight forward job but it still takes 6-9 months for someone to be fully efficient in the role. In my last role we were doing everything we could to fill new hire classes and were still consistently 50% short of our target class sizes. Managers were pulling their hair out, finance was having panic attacks over salaries, and HR was running out of ideas.
We're seeing that while its easy to pull 10k trained people out of an infrastructure with the stroke of a pen, it is much harder to put them back in. Toss in the great resignation and other factors, and its a really tough situation.
It will take 1-2 years to get the knots out of these industries...and that presumes no other big dislocations in the meantime. High inflation and the natural push-pull of realigning salaries with prices will exacerbate this problem.