I absolutely hate that airlines charge you for checking a bag on principle. It's so unfair. It would be like a restaurant charging a utensil use fee. It would be like a public school charging for use of its textbooks. It would be like a barber charging a chair rental tax. It would be like Ticketmaster charging two different service fees, one of which you don't find out about until the after you make the purchase. That infuriates me beyond belief.
Listen, services have a price. I understand. All I ask is for fairness. Give the entire price upfront; that would be fine with me. I wouldn't feel like I'm getting screwed by a horny elephant. And that's really all I want out of life.