5% margins? Becoming banks? Scarce innovation in the space? Lack of cleanliness on airplanes? How depressed every other attendant seems to be these days? The safety issues we’re seeing with counterfeit parts?
That they should spend more money and lower profit margins even more? Or that they should increase prices so that they can spend more money to improve the things you listed?
Surely, airline employees are more knowledgeable about how much customers are willing to pay than non airline employees.
They should be broken up to increase competition. European (and asian) airlines provide better service at lower cost. The US airlines get bailed out every 10 years and so there is no incentive for them to improve their companies at all.
Banks are the convergent evolutionary endstate of business, much like crabs are observed to be somewhat of a hobby of Nature in terms of the end state of evolution of many crustacean species. Or the capacity to send email is the evolutionary end state of software. Or politics is the end state of most fotms of online rhetorical discourse.
There is one step, and it is bank (Past a particular threshold).