People come in all shapes and sizes and manufacturers that created planes were well aware of this. Even if they were not aware when the first plane was made it is now 2013 and they know damn well that not everyone is going to sit comfortably in those seats. This is a money thing, that’s all it will ever be about. It is reported now that those who are deemed overweight must pay for two plane tickets rather than one since they will take up two seats and therefore cause there to be one less seat for someone else. For some reason I am a little torn because I do not think people should have to pay two tickets. Although I do not agree with this I myself have experienced sitting next to someone who is unable to fit in one seat. Not only is it uncomfortable for them but it was also uncomfortable for me because I could feel their sweaty skin rubbing against my side. The fact that certain airlines are starting to implement this rule is somewhat degrading I think. This is not only telling someone that their too fat but it is also letting other passengers know that the person was deemed too fat to fit in a single seat. All of this is just bringing attention to the person that more than likely they do not desire to have. Here is my question though: How do these airlines determine whether someone is too big to fit into one seat? I’m sure that they do not have the right to weigh them and they don’t ask how much you weigh when buying a ticket!! I just think planes should be altered so that they have at least three seats in which someone who is overweight can fit comfortably and only have to pay for one ticket instead of two. Some people have no control over their weight and I don’t believe that they should have to pay for it emotionally and physically
Unruly Bodies 
You make a great point that airlines have no right or good way to determine who is “too overweight” to need more than one ticket to fly. Rather than being willing to accommodate these individuals, who very often cannot or do not want to change their size, they persecute them and humiliate them. They make smaller people the “norm” and too-fat people the “other.” It’s absolutely a matter of money and convenience for the airlines; they don’t want to spend the money renovating their planes or setting aside two seats for someone who is larger rather than one small seat. Just as importantly, they don’t want to accommodate these individuals. They seem to be saying that if someone has the audacity to be fat, they must pay for it! It’s just not right.