CMV: It is perfectly reasonable for airlines to charge for extra seats when you don’t fit in one seat.
This applies to everyone, from body builders to obese people. I’ve been on just about every side of the spectrum so I’m not just hating something I don’t know anything about.
If you take up more room than you paid for it is totally reasonable to charge more for the extra room. I don’t think that should be controversial. It really sucks to sit next to someone like that. If I have to pay extra for my kid to have a seat, and pay even more for my kid to sit next to me, then why does someone get a free extra seat just because they’re too big? They made the choices that got them to that size, they can handle the consequences.