RIP Southwest Airlines: You did this to yourself
It's a rare business that identifies its own biggest advantage and decides to get rid of it.

Southwest Airlines has decided to become as crummy and passenger-unfriendly as its rivals, which offer fares that come with nothing and market them as giving passengers choice.
Imagine how customers would react if McDonald’s started charging extra for lettuce, tomato and ketchup and other condiments and marketed this as offering customers more ability to customize their burgers. Or, better yet, the chain could add a grilling fee and charge for frying your french fries.